formatted, no name, MP3 player

Ok... I just bought a no name MP3 player off of EBay, I think it came from Hong Kong.
When I first plugged it in to the computer it registered properly as a removable HD (i didn't realize this was how it was supposed to work at the time) but i noticed some weird "foreign" MP3's on it so I formatted the player, not realizing that formatting erased the drivers needed for it to register as a removable HD. Before unplugging it I copied one song on as a test, the one song plays no problem, the player still seems to have its OS installed properly, but I can't get the thing to register as a removable HD again. Can anyone help me out... I tried emailing the guy who sold it to me but he barely spoke english and just told me to spend another 50 bucks on mailing it back to him!