I found this on the Wal-mart Review page. I did it and it worked.
When i first bought it i had problems with saving the files onto the Player itself the music would not stay on it. Well i have figured out this problem and fixed it heh its quite simple of a problem to be solved the Mp3 player operates on FAT32 which its Hardware does not Support and which couses the problem of Data Loss so to fix this Reformat it in FAT format Not i repeat NOT FAT32 this should fix your problem other than that this is a very good product and i give it a very good grade for size performance and its nice 2 gig drive space
How to?
1) go to your My Computer.
2) Right click on your Ejectable drive or Drive G and go to Format in the drop down Menu.
3) Bellow File System select FAT not FAT32.
4) format the drive G which is your MP3 Player and then continue with putting music on it.
Done it should work fine now ^-^ Enjoy hehe