I was looking for a simple player to play background music with auto start and looping capability and tried a few others but did not like it. Finally came across this one and it is great. One suggestion from me is to add a few line to description page on how to access to plug-in's options. I am new to WordPress (this is my first week) and it was not obvious to me until I read the first post here.
http://wordpress.org/extend/plugins/dewplayer-flash-mp3-player/