I have noticed when using ubuntu (and windows for that matter), that vlc will sometimes fail when opening a file, or appear to, only when I close the program the process stays alive and plays me the audio, so I have to end or kill the process manually. Could this not be done automatically ?
This has only happened once or twice, and I'm not sure I could recreate it deliberately.

When I used a GOM player (http://www.gomlab.com),
when you click on movie - it makes automatic playlist of all video files in a folder that you watch current movie,
and when it finishes player start to play next until last file in a folder.

List of files is sorting by alphabet,
so it's very usefull when you watch TV series,
for ex. House M.D. - you don't need to make a playlist or if you forgot to do this - get up to computer and press "next" button.

What else can I say? It would be one less thing I would need Windows for! I have a few downloaded Amazon VOD movies on my Windows machine. (I am in the process of considering Ubuntu since Windows sucks and I can't afford a Mac.)