I haven't had a chance to play around with it much, but with Jemplode 54, the RioRID.jar, and the other tools, I think it might be possible to back up your playlist structure in a way to be able to recreate it from regular (non-FIDified) mp3s on your PC. I don't know for sure how you'd do it, or if it is even possible, but I'm posting here in the hopes that it will stimulate some sort of discussion about whether it's possible.

I know that using a RID, the song can be uniquely identified. What I don't know is if any part of the chain maps a RID to a FID so that the playlist can be recreated once the same RIDs correspond to different FIDs.

Anyone?