How big is your MicroSDHC card and speed?

[slopokdave]

whats the latest on when 32gb will be available?

[Nagual]

I just ordered a Class 6 SanDisk 8GB with a USB 2.0 reader. Since I basically was cashing in a gift card/points I figured it was the best deal for now. I wonder if the speed rating will make a noticeable difference. The reader was mostly just part of a backup plan in case I'm ever caught without my USB cable, figured I might as well have it.

[dr g]

I have an 8GB class 2 sandisk.

Is there a definitive answer on whether the speed class matters as far as in-device use? Specifically, I'm looking at video playback.

[kevm14]

At the very least I would think that the card needs to be at least as fast as the size of the movie divided by the length. And I bet it wants to be faster than "1x realtime" to play smoothly. How much I can't say. So in other words, if you have a 2 hour movie, and you transcoded it to 360MB, that is 360MB/120 minutes = 3MB/minute. This doesn't qualify as scientific testing but it would seem that even the slowest card (is there slower than class 2?) is 40x faster than necessary to play that video file. But that doesn't take into account any other data access on that card while playing the video.

By the way, I believe the class ratings were devised as a minimum throughput rating, rather than the old-style ###x ratings, which were peak throughput. Assuming the manufacturers of these are being honest, then any descrepancies may be simply attributed to either a compatibility difference (i.e. the TP favors one card over another, regardless of the speed rating) or simply that the TP can't take advantage of fast cards.

[ymarker]

Originally Posted by gator352

You have to format the card (in windows with a card reader) for windows to read it. It's just like adding a new drive. Must be formatted. Format the card as FAT (not fat 32) and both windows and the phone will read it.

Isn't FAT for < 2GB. For folks with 8GB card and above what filesystem are you using. I noticed the card wrote much faster with exFAT. Also writes much faster with a larger cluster size. Don't let windows format the drive using the default allocation sector size. Apparently a large size (wastes more memory) but writes faster ... upto a point.

EDIT: Also I fear sprint has turned off NTFS and ex-fat support. While the OS does support it, I can't get the device to recognize it.

[Exil3d]

Ya.. thx god that Sprint gave us 1 gig for the pro. Otherwise I would be forced to buy a bigger one. 20 $ for 8 gig is real nice. But 16 for 4 times the price is just nuts. I will wait until 16gigs drops to 40$. Then we are talking. Btw... will any higher cards be ever released? 16 is the highest.. what about 32?

[avidity_2002]

will this work for my Touch Pro?
PQI 4GB Micro SD High Capacity (Micro SDHC) Memory Card w/ SD Card Adapter, Class 6, Model AEAS-4030R01FJ

http://www.meritline.com/pqi-4gb-mic...-class6-2.html

[ymarker]

Originally Posted by avidity_2002

will this work for my Touch Pro?
PQI 4GB Micro SD High Capacity (Micro SDHC) Memory Card w/ SD Card Adapter, Class 6, Model AEAS-4030R01FJ

http://www.meritline.com/pqi-4gb-mic...-class6-2.html

Probably, but you'll regret not getting a larger sized card. I bought my 8gb class 4 @ the egg.

[[sammich]]

Originally Posted by kevm14

At the very least I would think that the card needs to be at least as fast as the size of the movie divided by the length. And I bet it wants to be faster than "1x realtime" to play smoothly. How much I can't say. So in other words, if you have a 2 hour movie, and you transcoded it to 360MB, that is 360MB/120 minutes = 3MB/minute. This doesn't qualify as scientific testing but it would seem that even the slowest card (is there slower than class 2?) is 40x faster than necessary to play that video file. But that doesn't take into account any other data access on that card while playing the video.

By the way, I believe the class ratings were devised as a minimum throughput rating, rather than the old-style ###x ratings, which were peak throughput. Assuming the manufacturers of these are being honest, then any descrepancies may be simply attributed to either a compatibility difference (i.e. the TP favors one card over another, regardless of the speed rating) or simply that the TP can't take advantage of fast cards.

That would be correct, if the speeds were measured in minutes.

If Class 2 [the lowest] transfers at 2 MB per second, there should be absolutely no issue.

[Blaqdymun]

8 gigs! Works Fine SanDisk ... $20 STAPLES SALE!