BetterPlayer is a freeware open source utility that plays QuickTime movies
without the clunky UN-Mac like interface that was introduced into QuickTime
Player and Sherlock 2.
You can change the creator types of BetterPlayer and even change them back to their original creator, this requires that the file has a resource fork.
If the file doesn't have a resource fork then you can add one using ResEdit. Open the file and it will ask if you want to add a resource fork, answer yes.
BetterPlayer's autoplay and loop features make it ideal for all of those MP3 and MIDI files.
BetterPlayer is in version 1.0, more things are planned for future updates, resizable windows, a favorites list and more!
Visit the authors website at http://www.foxchange.com
Click on the current version for the most recent release by the author