Control number of embedded artworks
In many music file types it is possible to save multiple artworks. However, not all music players cope with this very well.
This could be solved by adding extra entries to the embedded art option - adding a 'embed, but only one artwork per file' option.
This is now released: http://www.blisshq.com/music-library-management-blog/2012/05/08/new-release-20120501/index.html. See comments for an example video.
Here's a video of work in progress: http://youtu.be/28aURbSMEIc