Drivers Missing VX979 ONDA
 

Hi, i have a VX979 ONDA Mp4 player. When i got it i didn't know that i shouldn't errase the files that were in there, and now i can't play any videos. I saw the demo (before i errased it, along with the drivers). So i'm guessing it should be a way to fix this. Any ideas?
Is this a convertion problem? Should .avi files be converted before i put them in?
(i'm such an amateur!)