TagsFS is a file system for music files. It presents your mp3 and ogg files in a virtual tree based on the tags of the files.
You will find on this page what has to be done if you want to setup a multimedia production workstation with a standard Ubuntu installation (means without installing Ubuntu Studio).
Watching a movie and the dialogue is too quiet and the action too loud? Use VLC's built in Dynamic Compression tool - Some starter settings.
Yacufs depends on FUSE. It allows for the on-the-fly transcoding of various file formats. It is highly configurable.