I have created the 100xPlayer. It will play a sound file 100 times. I use it for my language learning. I listen to the same sentence one hundred times in a row. If you are like me and you want to use this player, feel free to download it. It will play .mp3, .mov, and .wav files. It might not play all files. For instance, it won't play a file if you only have read permission but not write permission. And it won't play a mov file unless that is a sound file. But mostly, it is for playing short mp3 files.
You can download the Windows version here: http://musclepipe.com/100xPlayer/100xPlayer.exe
The Mac OS X version is here: http://musclepipe.com/100xPlayer/100xPlayer.zip
It is just a simple player with no support, no guarantees, no warranties, and no fees!
It is required that you have QuickTime installed on your system.