As far as I know, the sony walkman a865 supports both wmv and mp4 video formats. When I bought it, the walkman came with some sample videos, all in .wmv format...

...whatever I do, the Sony won't play any video file I convert (for example) from .flv to .wmv (through VLC, WinFF, or Miro). I tried Blacklight3 though it doesn't seem to launch/work anyway.

is this a Linux/Sony compatibility issue? If it is, could you please help?