Develop Bugs

Time for a new micro sd card

I'm buying a larger SD card in readiness for Froyo (and I need more room for music!).
I've already filled up the 4GB card that came with the phone. Is it simply a case of copying everything from the 4GB card onto a computer, inserting the new card and copying it all back? Or is there some funky protection scheme in some app data which will break everything?
Also, will Eclair be able to format the new card (it's 32GB)? I think Windows 7 only formats fat32 on smaller drives.
Any information or other peoples experiences would be welcome.

If you just have one 4Gb partition it is safe to copy all the files to the new one and it should work without problems (copy also the hidden files).
For the format, Windows 7 can format it. Not sure if fat32 or exFat, but it can format it for sure.

Remember to buy a class 6 sdcard.
it will be much faster.

Oby One said:
Remember to buy a class 6 sdcard.
it will be much faster.
Click to expand...
Click to collapse
Just wanted to jump in here to clarify this statement. Higher classes means faster write speeds. There are no difference in read speeds.
Therefore...
- Having a higher class card will not result in better performance in tasks like generating thumbnails when viewing photos in your Photo application.
- If your application is installed on your card, higher classes will not mean faster application performance. Again, read speeds are not affected.
- Having a higher class card will mean you will be able to transfer files from your PC to your card faster.
That being said, you should buy the highest class card you can afford. But you should prioritize capacity over speed.
Tip: Pass on class 2 cards. They may start choking when you use your device to record 720p video.

ohyeahar said:
Tip: Pass on class 2 cards. They may start choking when you use your device to record 720p video.
Click to expand...
Click to collapse
Zero problems with my Sandisk 16gb Class 2 card. It writes at a sustaining 7.5mb/s, so faster than Class 6 minimums anyway.
Regards,
Dave

Thanks for all the advice guys.
Regarding the class, it has to be class 2 - it's the only thing available in 32GB.
However, as ohyeahar said, it's only write speed. I don't think a 720p stream will be a problem given the benchmarks I've seen for the Sandisk 32GB card. It seems to be writing at 5-7Mb/s so well above the Class 2 minimum.

I'm also buying a new microSDHC card. Should I format it in NTFS or FAT32?

Laban said:
I'm also buying a new microSDHC card. Should I format it in NTFS or FAT32?
Click to expand...
Click to collapse
Correct me if I'm wrong but when I format it on my computer, my desire always tells me to do it again anyway on my phone that is
Sent from my HTC Desire using XDA App

lennshow66 said:
Correct me if I'm wrong but when I format it on my computer, my desire always tells me to do it again anyway on my phone that is
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Ah, of course! That must be the correct way of doing it. Thinking of buying the Sandisk Mobile Ultra 16GB or the Transcend Class 6 16GB or A-Data Class 6 16GB.
Any recommendations?

Where is everybody looking to get their memory cards from? I'm currently looking for the best deals and struggling to find any decent ones tbh

ohyeahar said:
Just wanted to jump in here to clarify this statement. Higher classes means faster write speeds. There are no difference in read speeds.
Therefore...
- Having a higher class card will not result in better performance in tasks like generating thumbnails when viewing photos in your Photo application.
- If your application is installed on your card, higher classes will not mean faster application performance. Again, read speeds are not affected.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
I think you are not well informed. Higher class cards also offer higher read speeds and that is very important.
In my phone applications are also writing to card so having a higher class card makes all the difference. especially if you are using it with a swap partition.
I don't have the link to the benchmark right now but I will show you tomorrow the different read/write speeds in different class cards
Therefore...
- Having a higher class card will not result in better performance in tasks like generating thumbnails when viewing photos in your Photo application.
Click to expand...
Click to collapse
Yes it will
- If your application is installed on your card, higher classes will not mean faster application performance. Again, read speeds are not affected.
Click to expand...
Click to collapse
yes it will
later edit:
I don't remember exactly the values for read speads but from my tests they were something like this
cls2 15mb/sec
cls4 18mb/sec
cls6 21mb/sec
for me ...speed is everything so class 6 it's my choice

Oby One said:
I think you are not well informed. Higher class cards also offer higher read speeds and that is very important.
Click to expand...
Click to collapse
Sorry, but that just isn't the case!
The class of an SD card is purely the minimum sustained write speed that the card will achieve in a completely unfragmented state. It has *nothing* to do with read speeds.
Case to point, here are the benchmarks for two of my MicroSD cards:
16gb Sandisk Class 2
Sequential Read : 20.050 MB/s
Sequential Write : 7.415 MB/s
8gb Transcend Class 6
Sequential Read : 19.938 MB/s
Sequential Write : 15.020 MB/s
Note that the read speeds are almost identical, but the write speed of the class 6 is almost twice the amount. However, the write speed of both cards is well in excess of the class 6 minimums and given that there's far less writing going on than reading, the difference in write speed is practically negligible on the Desire.
Which card do I used in my Desire? The 16gb Class 2 and I experience absolutely no lag whatsoever using my phone, and I'm using Froyo Apps2SD.
Regards,
Dave

Laban said:
I'm also buying a new microSDHC card. Should I format it in NTFS or FAT32?
Click to expand...
Click to collapse
fat32
10 chars

Hmm, maybe because it's a newer generation class 2 card?
perhaps my tests were done with older generation cards that gave out lower speeds.
Now I am curios...I can't wait to get back home and find the tests file.

foxmeister said:
Sorry, but that just isn't the case!
The class of an SD card is purely the minimum sustained write speed that the card will achieve in a completely unfragmented state. It has *nothing* to do with read speeds.
Click to expand...
Click to collapse
Yep, Dave is absolutely right, it's purely minimum sustained write speed for that class. And as you can see, his Class 2 card actually exceeds the class 6 spec for writing and isn't far off from Class 8 performance.
Looking around the web, the 32GB class 2 card I bought has similar performance in the benchmarks I've seen to Dave's Class 2 card. Not only that, the benchmarks are done on a PC. I doubt the phone has the I/O bandwidth to actually hit numbers like those in any kind of sustained way.

ok, my bad.
There is a slight difference between different brands (regarding read speed) but not so big.
regarding write speed .... I think that only if you use your sdcard with a swap partition you will see big differences.

[Q] Why class 6 SD card?

Hi all,
I've read in a few places that if you want to run apps from your SD card that you should have a class 6 SD card. Can anyone explain why this is? I've currently got the one that came with the phone, which is class 2. Just want to understand why I need it before splashing out the cash
Thanks

It's all about speed. Class 6 is faster than Class 4 is faster than Class 2. If you are happy with the performance with your Class 2 card, no need to splash out the cash.

yeah its just about speed, the higher the class the faster the r/w speed, you dont really need a class 6 these days tho, maybe in the old days of the g1/hero but not now

There's quite a bit of discussion on this and I'm honestly quite confused over this as well.
The higher classes just means faster write speeds but same read speeds. Certainly, this shouldn't affect the performance of apps that are installed on the card; unless the card is being used for swap memory.
Anyway, I've heard some users with 32GB microSD card (only available in class 2) using app2sd with no ill-effects. I've recently purchased one myself and will be swapping it out later tonight.

newbie on Android here.....may I ask....Im currently using a 16Gb mem card....If I change it to a 32Gb, what are the files that I need to copy to the new card, so that the apps/games currently installed will still run? I noticed there are so many folders inside my memory card now.....which one should I transfer to my new card? Or should I need to re-install the apps?
thanks..

dinoalbert said:
newbie on Android here.....may I ask....Im currently using a 16Gb mem card....If I change it to a 32Gb, what are the files that I need to copy to the new card, so that the apps/games currently installed will still run? I noticed there are so many folders inside my memory card now.....which one should I transfer to my new card? Or should I need to re-install the apps?
thanks..
Click to expand...
Click to collapse
are you using apps2sd? or just running a stock like rom?

9 out of 10 users on this website would not be able to tell the difference in speed by running apps on a class 4 or class 6 cards.

AndroHero said:
are you using apps2sd? or just running a stock like rom?
Click to expand...
Click to collapse
I am using an OTA Froyo but already rooted....

Before the usual flamers get to write on this topic to say high-class cards are useless, it really comes down I think to the time you have available to wait for USB transfers. On a class 2 it takes AGES. I bought a class10 16gb and it's an absolute life changer (i do have a lot of public transport so I make heavy use of my phone as a video player)

phentex said:
Before the usual flamers get to write on this topic to say high-class cards are useless, it really comes down I think to the time you have available to wait for USB transfers. On a class 2 it takes AGES. I bought a class10 16gb and it's an absolute life changer (i do have a lot of public transport so I make heavy use of my phone as a video player)
Click to expand...
Click to collapse
Another reason to have a class 4 or faster card in the phone is to have reliable 720p 25fps video recording. On my Class 2 with a2sd+ recording stutters.

thanks for the responses. from what i read previously, it talked about class 6 cards being less likely to be unmounted and causing problems to running applications. does this mean anything to anyone?!

Kashban said:
Another reason to have a class 4 or faster card in the phone is to have reliable 720p 25fps video recording. On my Class 2 with a2sd+ recording stutters.
Click to expand...
Click to collapse
This is the reason when I eventually get the money I'll be getting a 16GB class 4 or 6 card. At the moment 720p is fairly pointless to me since I can't get smooth recordings with my SD card.

Have no issues with my 16Gb Class-2 sdcard. R/W speed enough to handle 720p recording and rockplayer playing avis perfectly.
Sent from my HTC Desire using XDA App

iLHaNroID said:
Have no issues with my 16Gb Class-2 sdcard. R/W speed enough to handle 720p recording and rockplayer playing avis perfectly.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Are you running A2SD or a2sd+ on your phone? If not, that may be the reason.
The more apps and widgets and stuff is moved to the sd, the more r/w-access happens to the card, which has serious impact on video recording. I really wish the internal memory of the Desire wasn't so small. What the heck did HTC think by putting only 560 MByte internal storage into their android flagship? The SGS has 5 GiBytes!

jstegeman said:
It's all about speed. Class 6 is faster than Class 4 is faster than Class 2. If you are happy with the performance with your Class 2 card, no need to splash out the cash.
Click to expand...
Click to collapse
Incorrect!
The class of the card doesn't tell you the speed of a card - it tells you the *minimum* sustained write speed on a card which is completely unfragmented
A good quality class 2 card can and often will be faster than a poor quality class 6 card.
The two Sandisk Class 2 card I use both write at around 7.5mb/s, which is faster than the class 6 minimums.
Regards,
Dave

foxmeister said:
Incorrect!
The class of the card doesn't tell you the speed of a card - it tells you the *minimum* sustained write speed on a card which is completely unfragmented
A good quality class 2 card can and often will be faster than a poor quality class 6 card.
The two Sandisk Class 2 card I use both write at around 7.5mb/s, which is faster than the class 6 minimums.
Regards,
Dave
Click to expand...
Click to collapse
That's interesting info! Would explain why I have far fewer problems than most people report with 720p recording onto my class2 card.
So the real answer is: Benchmark your write speed before making any big purchasing decisions on SD cards.

Kashban said:
Another reason to have a class 4 or faster card in the phone is to have reliable 720p 25fps video recording. On my Class 2 with a2sd+ recording stutters.
Click to expand...
Click to collapse
so a class 4 good enough for 720p? i have a class 2 right now and the recording is just horrible.. i thought that my phone was broken and have changed many custom roms

Bought a C6 16gb to replace C2 4Gb - definitely faster as USB drive - both Sandisk

Do I really need anything higher than a Class 2 microsd?

Thinking about upgrading to a 16gb sd card. I noticed that a class 2 goes for like 19 bucks while anything with a higher class is 30 bucks or more. Will I really see a perfromance boost if I get a class 4 or 10? If so, what will increase? Will photos load faster? Will the videos I record in 720p have a faster playback? Etc. What takes advantage of the class speeds?
Thanks for any input guys!
Sent from my T-Mobile G2 using XDA App

durps said:
Thinking about upgrading to a 16gb sd card. I noticed that a class 2 goes for like 19 bucks while anything with a higher class is 30 bucks or more. Will I really see a perfromance boost if I get a class 4 or 10? If so, what will increase? Will photos load faster? Will the videos I record in 720p have a faster playback? Etc. What takes advantage of the class speeds?
Thanks for any input guys!
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
If anything, for video playback the faster class sd's will/should eliminate stuttering issues etc.
Here's a good breakdown of the diffs: http://www.sdcard.org/developers/tech/speed_class/

I would say given the lack of a2ext on this phone there really isn't a need for anything higher than a class 2 on this phone. The only things it would help with are:
1. If you use linux swap (stores the cache on the sdcard)
2. If you've moved your dalvik to the sdcard
3. If you use enomthers rom which has a2ext/linux swap
4. Video playback/recording (maybe)
5. File transfers. Large files and sdcard backups will be quicker
That's really all and if you don't use most of that stuff then I'd just stick with a class 2 and suffer the slower transfer rates. You should be fine with video, I've used a class 2 and 6 - video was the same as far as I could tell but certain videos (movies) might shutter a bit with the class 2, I never tested that aspect.
Sent from my T-Mobile G2 using XDA App

Also note, the class is simply indicative of the minimum write speed, not read speed. Things like playback and load times are not affected that much (though things like 720p video recording could theoretically perform better).
Also, because the class is the minimum speed, a lot of the time the higher quality class 2 cards may still achieve class 4 of class 6 write speeds.

Ahh, I see. Thanks for the info guys!
Does anyone know the common write speed of the stock 8gb card?
Sent from my T-Mobile G2 using XDA App

I believe the stock card is class 4 so the minimum it should be able to write is 4 mb/s. Not every card is created equal. If you search on google you can find apps that help you test the read/write speed of the card.

I'm pretty sure my stock card was a class 2. I now have a 16gb class 2 card, and it seems to do everything fine... including video recording.

The stock card in my G2 was a Class 2, though for my wife's MyTouch 4G (bought on the same day) she got a Class 4.
When I had my G1 I switched from a Class 2 to a Class 6, my picture taking got noticeably faster, I used that same Class 6 in my G2 so I can't really compare it to anything there.

My stock card was a SanDisk, and they only make Class 2 cards. I use my Class 6 card in the hopes that more the Android modders sees the sense in having a /system/sd folder leading to an ext partition.

blackknightavalon said:
My stock card was a SanDisk, and they only make Class 2 cards. I use my Class 6 card in the hopes that more the Android modders sees the sense in having a /system/sd folder leading to an ext partition.
Click to expand...
Click to collapse
Not sure if you've been keeping up with this thread or not, but it should make you really happy then: http://forum.xda-developers.com/showthread.php?t=925996.
And SanDisk does make cards higher than class 2...

Regarding Micro SD card

Hello...
I have a SanDisk 4GB class 4 micro SD card that came with HTC desire. I installed one of those ROMs that support Data2SD, and it was fast without lagging (actually, super fast).
I bought a Kingston 8GB class 4 micro SD card to replace it with the SanDisk, and installed the same ROM, but I noticed an annoying lag during the normal use, as an example, just after booting to the home screen, when I enter Settings, it lags for like 5 seconds (that NEVER happened in the SanDisk 4GB card). It also lags on different application such as when launching the web browser (a pause for 7 seconds, and again, that didn't happen with SanDisk).
I bought another card, this time Imation 8GB class 4, but it gave me the same results as the Kingston!!
I did a test on the three cards using H2TESTW, the results are as follows:
SanDisk 4GB Class4 --> Write: 4.5 MB/s Read: 11.3 MB/s
Kingston 8GB Class4 --> Write: 4.4 MB/s Read: 18.3 MB/s
Imation 8GB Class4 --> Write: 4.5 MB/s Read: 18.5 MB/s
They all share the same speed in writing, but the Kingston and Imation are faster in reading! which confused me! They both have faster reading speed than the SanDisk BUT lag annoyingly during the normal use!
To be very clear, I tried the Imation card with a ROM supporting App2SD not Data2SD, and it ran smoothly with no lags, but once Data2SD is there, it starts lagging! (I know that Data2SD ROMs are slower than App2SD, but I swear, the Data2SD on SanDisk is FASTER than App2SD on Kingston or Imation).
One more thing, I tried various partitioning for the 8GB cards, with and without swap (swap was always 32M) but with no luck to improve the performance.
If anyone has a logical explanation for this case please let me know, and if there is a certain fix for that (I don't know if increasing the swap size for the 8GB due to their higher capacity would help) please share it here.
Thank you.

Are you by any chance using starburst? Try the newer xe and we scripts on the beta section.they should eliminate lags for slower cards
Swyped with my Starburst based Desire. Forgive any typos!

droidzone said:
Are you by any chance using starburst? Try the newer xe and we scripts on the beta section.they should eliminate lags for slower cards
Swyped with my Starburst based Desire. Forgive any typos!
Click to expand...
Click to collapse
Thanks for your reply.
But it seems that the both of the 8GB cards that I have are faster than the 4GB card, then why are they slower in ROMs?!!!

tharwatq said:
Thanks for your reply.
But it seems that the both of the 8GB cards that I have are faster than the 4GB card, then why are they slower in ROMs?!!!
Click to expand...
Click to collapse
Any ideas?

Well, from what I understand, 4gb are faster in real life than 8gb, all proper tests show that, look up test charts in Google. I believe its because it takes more time to search for info over the larger space. I'm only speculating on that, as I don't know this for sure.
Sent from my HTC Desire using XDA App

tinky1 said:
Well, from what I understand, 4gb are faster in real life than 8gb, all proper tests show that, look up test charts in Google. I believe its because it takes more time to search for info over the larger space. I'm only speculating on that, as I don't know this for sure.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Well, that is what I thought of too, take -for example- 500GB hard disk drive, it will take much time to scan than a 120 GB drive, which is logic.
I will do more research on this thing and will post back.
Thanks.

What speed and/or Class card do you use for your memory card?

Hey
Im sorta "hell bent" on getting a 32GB microSD Class 10 card ( http://forum.xda-developers.com/showthread.php?t=1031312 ) but they are very limited to find. I want a Class 10 because of data transfer and the snapping of pictures/video taking is alot quicker.
I just want to know what class did you get, for what purpose, and what do you use your mobile device most (taking pictures, internet, calling, etc).
Just so everyone knows (just in case):
The Speed Class Rating is the official unit of speed measurement for SD Cards, defined by the SD Association. The Class number represents a multiple of 8 Mbits/s (1 MB/s), and meets the least sustained write speeds for a card in a fragmented state.
Click to expand...
Click to collapse

Hey,
I was really keen on getting a class 10 32Gb too, but they are very expensive. In then end I opted for a 16Gb class 10 as Play.com had them on offer a month or so ago. I got a sandisk one. Just had a look for a link, but I don't think they have them now.
Guess you could get it anywhere though. I paid £15 including delivery.
I've done a couple of measurements and it's definitely performing at class 10 speeds. I have an HD2 running an Android Gingerbread SD build and the speed has been more than adequate.
My use is mostly internet, texts and calls. I have done some video/photo stuff since getting the card and it's definitely fast enough.
I used to have a class 6 PNY 8Gb one in there and it's a hell of an improvement, especially now I'm on an SD build. The only thing I would say is android takes a fair while to do it's 'preparing SD card' business when I turn the phone on, but no other issues to report. the new card seems to have helped with the hang issues on installing market apps too, which is nice.
Also - did a defrag on it with Mydefrag (beautiful tool!), which seems to have helped too.
Hope that helps!

I still use my stock 8GB card I got with my phone. My main use is pictures and apps. Its a class 2.
Sent from my HTC Inspire 4G
XDA Developers Premium App

I'm currently using 2 32GB Sandisk cards... one is marked class 2, one is marked class 4, but both their average write speeds are pretty similar. They could accurately be marked as class 6.
But really, the class is not important to me. When it comes to choosing a card to use in my phone, I look for cards with quick access times and fast random read and write speeds. Class ratings are really only important when the cards are going to be used in a digital camera or be used as a flash storage drive where you will be transferring large files back and forth.
When it comes to cell phones, a card that can quickly access files and can read/write to many different parts of the card quickly is much more important than a card that can write sequentially fast. You may be able to take large pictures with the camera more quickly with a higher class card, but many cards sacrifice their random access speeds to get that high sequential write speed. This can cause lags and performance loss when running apps or system files off the higher class cards.
The best cards to generally use in cell phones is a class 2 or 4. Many class 6 may perform well, too. There may even be class 10 cards that don't sacrifice that random access speeds. Quality and brand are generally much more important than class to get good access speeds and random read/write speeds.
I really think there needs to be a new rating system for access speeds and random speeds. In general, the lower class cards have better random access speeds, but that's not always the case. There are plenty of class 2 and 4 cards that have terrible random access times, and many class 6 and even 10 that still have great random access. Unfortunately, there's no way to know how a card rates in these areas until you actually test it.
I've always had good results from Sandisk cards... and terrible results from Kingston.
Hopefully, since WP7 requires cards used with it to have good random access speeds, we might start seeing some lines of microSD cards that rate these speeds.
But for now, if you're using the card with wp7, or running android off the card, or running apps or other system files off the card, you will generally have better results with high-quality lower-class cards. I have only been using Class 2 and 4 Sandisk recently. Hopefully a new class and rating system is created for using these cards with smartphones. We are using them more and more for the purpose of internal phone memory... especially windows phone 7, and even with android you see more people making partitions on their cards to use as internal memory to run app and system files. We need a better rating system for cards, cause the current class rating is pretty much meaningless for smartphone purposes.

homescrub said:
I still use my stock 8GB card I got with my phone. My main use is pictures and apps. Its a class 2.
Sent from my HTC Inspire 4G
XDA Developers Premium App
Click to expand...
Click to collapse
Thanks but vote
Seiphr said:
Also - did a defrag on it with Mydefrag (beautiful tool!), which seems to have helped too.
Click to expand...
Click to collapse
Defraging a flash based storage device does nothing and actually makes its lifetime smaller.
zarathustrax said:
I'm currently using 2 32GB Sandisk cards... one is marked class 2, one is marked class 4, but both their average write speeds are pretty similar. They could accurately be marked as class 6.
But really, the class is not important to me. When it comes to choosing a card to use in my phone, I look for cards with quick access times and fast random read and write speeds. Class ratings are really only important when the cards are going to be used in a digital camera or be used as a flash storage drive where you will be transferring large files back and forth.
When it comes to cell phones, a card that can quickly access files and can read/write to many different parts of the card quickly is much more important than a card that can write sequentially fast. You may be able to take large pictures with the camera more quickly with a higher class card, but many cards sacrifice their random access speeds to get that high sequential write speed. This can cause lags and performance loss when running apps or system files off the higher class cards.
The best cards to generally use in cell phones is a class 2 or 4. Many class 6 may perform well, too. There may even be class 10 cards that don't sacrifice that random access speeds. Quality and brand are generally much more important than class to get good access speeds and random read/write speeds.
I really think there needs to be a new rating system for access speeds and random speeds. In general, the lower class cards have better random access speeds, but that's not always the case. There are plenty of class 2 and 4 cards that have terrible random access times, and many class 6 and even 10 that still have great random access. Unfortunately, there's no way to know how a card rates in these areas until you actually test it.
I've always had good results from Sandisk cards... and terrible results from Kingston.
Hopefully, since WP7 requires cards used with it to have good random access speeds, we might start seeing some lines of microSD cards that rate these speeds.
But for now, if you're using the card with wp7, or running android off the card, or running apps or other system files off the card, you will generally have better results with high-quality lower-class cards. I have only been using Class 2 and 4 Sandisk recently. Hopefully a new class and rating system is created for using these cards with smartphones. We are using them more and more for the purpose of internal phone memory... especially windows phone 7, and even with android you see more people making partitions on their cards to use as internal memory to run app and system files. We need a better rating system for cards, cause the current class rating is pretty much meaningless for smartphone purposes.
Click to expand...
Click to collapse
Great post as in the other thread I may have to go with a Class 4 (as there are even less Class 6) card as it will also lower the price in my budget. Cant have everything...

I got a good deal on a Samsung 16 gb class 2, figured I'd go for it because I don't really use my phone for too much HD recording . However, it consistently benchmarks at class 6 speeds.
Yes, I did vote

32gb sandisk class 4

No clue, is there a program which can be used to check it in a SGS?

johan81 said:
No clue, is there a program which can be used to check it in a SGS?
Click to expand...
Click to collapse
h2testw
Thanks

Thanks for all the votes
It seems since Im on a budget, Im going to have to go with a Class 4 even though it hurts as I (thought) a Class 10 was needed. I just hope I dont notice it when taking pictures.
SanDisk without a doubt right?

riahc3 said:
SanDisk without a doubt right?
Click to expand...
Click to collapse
Im tempted to make a thread about this as well
I just like to make sure what I buy before I do it. Makes me more sure about what Im buying.
Thanks to everyone who has helped me in these 2 (well problably soon 3) threads. I appreciate it

riahc3 said:
Im tempted to make a thread about this as well
I just like to make sure what I buy before I do it. Makes me more sure about what Im buying.
Thanks to everyone who has helped me in these 2 (well problably soon 3) threads. I appreciate it
Click to expand...
Click to collapse
Definitely Sandisk....if getting 32GB, look for model # ending in B35A or B35N. I think that's the one I got. I'll double check tonight and let you know. It was listed as class 2 when I ordered it, but it was marked class 4 when I got it, and it had sequential write speeds equal to class 6 (6MB/Sec). I also have a 32GB with model # ending in A11M... this one was mark class 2, but I think newer ones are also marked class 4. Not sure if the newer ones marked class 4 have better performance than the ones marked class 2, but mine which is marked class 2 could also easily be marked class 6 and be as fast in sequential write speeds as most class 6 of other brands... but the class 2 A11M is not quite as fast as the class 4 B36A that I have in both sequential write/read and random read/write & access times. But like I said, the newer A11Ms marked as class 4 may have better performance than the ones marked class 2, and the performance difference between my 2 32GB Sandisks is not very big.... both are VERY good cards in overall performance.
I got both my cards from provantage, I believe.

zarathustrax said:
The best cards to generally use in cell phones is a class 2 or 4. Many class 6 may perform well, too. There may even be class 10 cards that don't sacrifice that random access speeds. Quality and brand are generally much more important than class to get good access speeds and random read/write speeds.
Click to expand...
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Hey zarathustrax, I'm maintaining a microSD benchmark results thread and we have quite a few results now, and it backs up everything you are saying. The 32GB Class2 Sandisk (when it was available) owns everything on random writes. Followed by the 32 Class4 Sandisk.
By comparison, a 32GB Class10 Lexar is benching 350 times slower for random writes than the Sandisk. And yet only offers a doubling of sequential write speed.
Additionally, I maintain an in-phone microSD benchmark thread too. But the results are pretty much cached out by whatever ROM you are running on your phone. So slow cards become much faster, and fast cards become much slower. In the end we found that all cards were performing at around the same speeds. Its only when you changed ROMs would you see a change in in-phone card speed.
Out of phone benchmark link...
http://forums.whirlpool.net.au/forum-replies.cfm?t=1582172
In-phone benchmark link...
http://forums.whirlpool.net.au/forum-replies.cfm?t=1468705

Thanks. Im going to read your links now and see if there are model numbers and get some cards (I should have already bought the card before yesterday)
Thanks again stumo5

Damn, no model numbers

Stores that are near me and deliver to me only offer Kingston lol...

Holy ****!
I have found one that has a Sandisk; The only problem is that on the webpage it says that it is a SDSDQM-032G-B35 but the picture shows a 2 written on the card, meaning Class 2. I pretty much refuse going from a Class 10 to a Class 2 and besides the price is 95....
Im going to call and get the model number anyhow....

Kingston 60 bucks
Sandisk 95 bucks
Man how they like to **** consumers in the ass Anyways, he said that what was shown to him was divided by categories and he couldnt tell me the exact model number as it just showed him prices and who supplied it but I rather pay on eBay a Lexar Class 10 at 96 rather than a Sandisk Class 2/4 at 95.
More comparisons: A Sandisk Class 2 32GB at 89 bucks on eBay.
I mean I really have to juggle and ask my self: Is it really worth it? Being on a slight budget, Im not sure.
stumo5 - Has anyone done tests in your microsd exam on TopRAM? I might get them at the end as the prices are just rapist ( ). zarathustrax, the price doesnt justify to me at the end, unless I will notice it.
My main dilema was how pictures were going to be taken as I imagine there will be a lag in picture when I press it and when it is actually taken. Also file transfers and installing/running applications from the SD card. Your explanation was great zarathustrax but Im not sure if its going to be worth the price.
My first smartphone (Nokia E70) I went with Kingston but it surprises me in a way that people talk so bad about Kingston in the flash memory card area.

And I now see on eBay a Sandisk 32GB Class 4 at about 75....More or less.

I'm currently using the 8gb one that came with my Desire Z although I have a class 6 8Gb somewhere that I bought but I haven't felt the need to swap yet for some reason I can't tell a difference