Problems with transferring songs and "bad disk" me

[Tren]

Hey i have an me2 mp4 player which has problems with transferring songs to it.

I have replaced the firmware with the same version number which successfully transfered, the drive now shows up as 1.90gig instead of the orignal 4gig. Im sure 1.90 gig is the more realistic size but the drive will only let me format it in fat, not fat 32, it says format complete and then puts a few strangely named files and folders on the drive which dont exist when u click on them. If you drag anything onto the drive it will not recognise them and says bad disk when you try to access them from the mp3 player. I have tried changing the firmware again and each time i try that the player now turns off in the middle of it and turns back on. Resulting in "failed to write to disk". I also took the device apart in an attempt to restore it but had no luck with the tweezers on pins fuide.

Any help appreciated.