1. A simple textbox so you could "introduce" your mixtape (beyond the subtitle). Allowing HTML so you could do things like include links. 2. The ability to link to lyrics for each song. In several mixtapes the lyrics are the primary reason I'm including the song, and it would be great to be able to include links. So this would just be a field for each file, perhaps accessible via the "rename" link, that would accept a web address and then render it as a link, perhaps styled in the same way the MP3 download link is.
Just a couple of ideas. Love Opentape! And I'll see if I can muck around with my limited PHP skills and come up with ways to implement either of my ideas.