I think you are confused...
The container may be the same, but the true formats are most likely the reason it’s not showing up.
Use Gspot to check the codecs used, and make sure they will play on your xbox... 
i have been downloading movies from bittorrent and they have been working fine my xbox 360 is hooked up to the same network and they are displayed and played on the x box through my tv.i just have 1 that wont show up it is in the same format as the others i see it seeding on the bittorent but it wont show up can i somehow force it onto the media player or library?