[lashed]

Afternoon all, I've just joined the site as I've recently bought a 4GB Mp4 player off ebay and I've encountered a number of problems / issues.
One of the problems is for some reason when I've copied a some music files over, it starts to duplicate everything on the player (when viewing it through windows explorer) I had 3 extra copies at one point?
I read in a post about formatting the player, but backing up the fireware is it? I'm a real novice at this sort of thing.
Also I've downloaded a movie to AMV convertor (3.68), now it seems to convert ok but when I copy it over to my player it doesn't even recognise the files being there? Any ideas?
Thanks in advance guys.