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Help Galaxy S SD Card type?

M

mdtolic

Guest
I'm a little confused about what to look out for when purchasing a MICRO SD Card. I did a search, but it didn't get me anything concrete. Apparently, a 16GB Micro SD card isn't just a 16GB Micro SD card. There are different formats? Some work for sone device but another may not? What works on a Galaxy S (Vibrant for me)? Is a "microSDHC
 
I'm a little confused about what to look out for when purchasing a MICRO SD Card. I did a search, but it didn't get me anything concrete. Apparently, a 16GB Micro SD card isn't just a 16GB Micro SD card. There are different formats? Some work for sone device but another may not? What works on a Galaxy S (Vibrant for me)? Is a "microSDHC
 
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I bought a 16gb Class 2 (SanDisk) for $28.. works fine for me.. streams audio and video just fine. If you want to pony up the $$ for a Class 6 it might help you later as we start loading apps onto SD.
Actually a class 6 will make no difference with apps running on the external SD Card. The Galaxy doesn't demand a large and fast enough buffer to task the card.
As an example I've written HD video from the camera to a 16GB Sandisk Ultra Mobile, 16GB Class 6 Transcend & 32GB Sandisk Class 2 and there's no speed difference in writing/playing back the video file.
The only place you will see any speed differences is when transfering data from a PC to the card.
 
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Will any of these one be a good choice:

1
Kingston 32 GB Micro SD Card with adapter new class 6 - eBay (item 230536421445 end time Oct-12-10 17:04:28 PDT)

http://cgi.ebay.com/SanDisk-32GB-mi...gital_Camera_Memory_Cards&hash=item255dffd24a
 
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The issue with SD card speed is the phone (or host device) may think it is more capable then it is. The phone's processor hardware must have the buffer space and software to deal with the higher data class speed. Other things like PCB layout, software drivers, and other task running concurrently, can impact speed of data transfer.

A lot of folks have found issues on some phones when they buy a class 10 card. The phone's processor queries the card for speed class, and tries to transfer data at the SD card's capability.

An I.C. supplier (like Qualcomm chipset supplier) may test the speed at optimal conditions of the processor and software like solely exercising transfer with nothing else running on the processor and on a test setup hardware that is very clean on the SD I/O interface lines.

HD video is probably the most taxing for speed requirement. Class 2 card should be fine if video is H.264 (mp4) compressed and done at an appropriate quality resolution for the 800x480 LCD screen. (file size at about 1.5 GB for 2 hour movie).
 
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