Quote:

use strange codecs from the stone age without problems...




If you keep sure that your video codec is installed on the user's PC, you can playback anything. So, e.g. you want to use the latest DivX technology, include a DivX installation (if this is permitted, I dunno) and run it during your setup routine.

I like unity's editor and the workflow implementation for native formats, like importing a PSD, automatic flattening and automatic DXT conversion - with one click!