Thanks for asking.

Remote Buddy is a remote control application and as such can only 
remotely control iTunes on your Mac. It's not a media player and thus 
won't play back music on your iPod Touch.

The Movie Library is a pure VIDEO_TS launcher allowing users to launch 
VIDEO_TS folders in DVD Player and VLC.

You can access the movies you organize in iTunes in the Music module 
(which you could also call the iTunes module): inside the Music 
module, tap on Library, then on Movies / TV Shows / ... to get right 
to them.

Hope that clears things up.

Best regards, 
Felix Schwarz