It would be great to have easy checkbox access to all those cryptic command line parameters like whether to attempt DSP playback of audio, video rendering modes, etc.

Another thing I would like to see is a better means to skip around within a file. The current forward/back key method using the 5 way hat is far from ideal, particularly when trying to watch movies over multiple sessions. It would be nice to have some sort of timestamp bookmark system or some way to skip to a specified timestamp. Perhaps even just an "open file from last position" feature would do.

Great work so far!