Add a Column Choice of "LAST MODIFIED" file date. I don't know why it isn't there, but neither Date or Timestamp does not provide that information.

I use the My Computer mode most of the time for navigation amongst my MP3s because I don't build or use libraries much. Slows the app too much and a few bugs. Can you add a simple BACK button as in a browser? Better yet would be to have a BACK and FORWARD button function whether a user is in library...