A Whole Lotta (Fake) Storage

My brother got some cheapo usb flash drives while visiting Southeast Asia Macau.
He was cool enough to give me one (i'm no bully brother, honest):

Unless you're still using floppy disks to backup your work, you should know that there is no such thing as a 32GB (sony vaio) usb flash drive. Well, at least at the time i'm posting this.
But i'm kinda used of getting cheap, exotic, made in china hardware from the old days there, so i immediately mounted the pen drive on my laptop.
Yep, got a successful mount and it's 32GB alright:

lappie:~ corro$ df -h | grep Volumes
/dev/disk2s1 31Gi 896Ki 31Gi 1% /Volumes/UNTITLED
lappie:~ corro$

I even thought that this was some kind of dirty trick, so i formatted the flash drive and gave it another mount. Still 32GB, great! Everyone was impressed with my new gadget (yet another) and asking to give it a try on their laptops to check the size (no one really believed). You know, a small pocket device with 32GB of storage really enlarges your geek ego (really).
All was great until the day i actually needed to copy some big files (aprox 6GB) into the disk.
The copying process was OK, no errors reported whatsoever (or at least Finder made me believe so). Later i tried to read the files from the flash drive and it took too much time to copy them back to the desktop.
The icons didn't even match the filetypes. Blank icons for jpeg files probably means they're no jpegs at all.

Trying a simple md5 checkum also fails:
lappie:~ corro$ cp Archive.zip /Volumes/Untitled/
lappie:~ corro$ md5 Archive.zip /Volumes/Untitled/Archive.zip
MD5 (Archive.zip) = e737af85d5057be2c65f34bb1e842802
MD5 (/Volumes/Untitled/Archive.zip) = 19590aec06debc3702153e00c2c96be4

I found out that Disk Utility doesn't show a Sony Vaio usb disk, but rather a Alcor Flash Disk Media disk.
Googled it and got this.

All flash drives in the picture are fake.