Here's something I whipped up last night.
http://pastebin.com/Ahd5n3gL
Currently it will just grab every mp3 link in the RSS file regardless of week.
I'll edit it later so that way you can select which week of music you want to download.
But since only Week 1's music is up it isn't a big deal, I'll try to fix it before Monday.
Included inside of the zip file that it creates is a file called "copyright" that lists each song and what copyright the artist released their song under.
It should all be correct but someone should verify that the copyrights match up correctly just to be sure. From the dozen or so that I checked it seems to be accurate.
I'm currently running the script right now and when it's done I'll try to host the zip somewhere for you all (depends if it's too big for Mediafire or not, I forget what their file size limit was).
Unless you'd be down to host the file here on the site, trash?
EDIT: Hot damn, the zip is 750MB. Instead of putting it on Mediafire I think I'll just make it a torrent, might be a lot easier that way.
EDIT2: Here it is! I have the torrent running off of my home server so it will be up 24/7 but since my Internet isn't all that great some help seeding would be appreciated. Enjoy
http://www.mediafire.com/?u9a865jzqarnfac