So Here I'm with some information for you to detect these fake flash drive and never buy them, I've seen them every where: ebay, amazon, some chinese web sites, ... just beware of HUGE size flashdrive with low price specially from CHINA.
First how indicate:
As mentioned here http://forums.hardwarezone.com/showthread.php?t=1642158 you have to copy alot of files (just like musics or picture) and copy them back to you hard disk check them all (you can use thumbnail view) and beware of the caching feature in Windows or you can also "Safe Remove" the disk and attach it again and check file names and you'll see some "00000 thing name" (you may see some aother things but not the original). The amount of files needed to do so depend on what really that one is, I mean is it really 16MB? so you need 17MB of files. but as I see they will use 16-128MB so you can simply use 130MB files and you'll see if it is allright or FAKE.
So the most import part is WHAT THE **** IS THAT THING, REALLY.
So I searched the web and found some usefull utils, and I'll tell the names and if you couldn't find them just leave me a message and I'll see what can I do for you.
First you need to identify the actual CHIP, YES THEY CAN RENAME IT (after you can too!), for this you can use a utility called USBVIEW.EXE this application will give you the Vendor and Product ID (idVendor, idProduct) and you can search for them in the Web, mine was 0x1043 0x8006, 0x8012 mean iCreate, you can refere http://www.linux-usb.org/usb.ids for Vendor and Product IDs.
You can checkout
http://www.22b324.com/down.php?nowmenuid=30189, just let the google translate it for you (The english site is under construction) and download I5xxx utils:
** Note that there are all work under Windows Server 2003 or maybe Windows XP, these will not work under Windows Vista. So If you want to test these FlashDrive NEVER use WINDOWS VISTA. **
** I also found an application name "System Information Veiwer - SIV" which you use to see the Vendor name of USB FLASH DRIVEs, but I mentioned that this is very large, I always want a software to see the MEMORY/ CPU BUS SPEED and this will work like a charm.So these are what I've found, Tell me if you know more.