Ah, the grand hosting of the MP3 format. That's becoming more and more rare with the RIA and MPAA flipping out. 
On the plus side, I don't think US agencies will care too much about ANY of my materials...
Tis rare indeed! I wrote a rant about it at my small forum once. I usually try to pick music from stuff that's either really old or really new and unlicensed or recently licensed. Either way, as long as it doesn't have a domestic soundtrack (still in print that is) I figure I'm fairly safe.

There's also a section at ym forum where you can submit requests. If I, or someone else can fulfill them, we will.