Not sure if someone already posted about this but in the game Freelancer, a space sim, there are a few bars where you find news and pickup jobs. Most are you will forget but there were a few that I have saved for years and are always on my play list. Ihey are very loop-able.
You can grab the files directly from the game folder but they are stored as MP3, I am not sure if anyone will find any thing better.
Here is where you can find some tracks: http://the-starport.net/modules/wfdownloads/viewcat.php?start=120&list=M
And here are my top 5.