I was thinking "man I want to listen to some Commander Keen" music tonight while I work on my java project. So I download some spiffy tunes, and go to import them to my growing collection of gaming tunes on Rhythmbox. Suddenly the application is telling me that it cannot import the files.

Is there a known work-around or do I need to find a new music player?

If it is at all relevant I'm running Ubuntu 6.06