I bought a DSTT with an 8GB Sandisk yesterday. Added 1.15 fw, & added a NDS folder with several roms.
Typical symptons were locking up whilst navigating the roms. When attempting to load roms I would get the error:
[Rom loading failed]
TTMENU.SYS error!
There was also a "cannot create sav" error, too. Eventually the data on the card would get corrupted.
Tried formatting the card, different card-reader, older fw, etc., but no good. Then tried a 2GB sandisk with the same symptons.
I took it back to the seller today & was able to demonstrate the error for him, he replaced it for me & the new one is working
without any errors.
Although he said he'd never seen the error before, this post proves that it can happen.
Edit: I checked the photo's of the fake cards, & this one appeared to be real. I didn't open it up though as I knew I would be getting a replacement.