>Ok, fun times. I have an O2, and it seems to like to spit any and 
every cd I give it right back out.
>Is this a common problem, or something I’m overlooking?

Sadly this is a common problem:

http://forums.nekochan.net/viewtopic.php?t=9130&highlight=eject

The same thing happened to my O2 so I ended up replacing the drive ;-(

Cheers

Chris