If you’re a long time Guitar Hero fan, you’re probably used to swapping discs around during play sessions to play songs on different versions of the game. With Rock Band 2, Harmonix is going to allow gamers to migrate their Rock Band track list over to Rock Band 2. It does come with a price, however, which will be at 400 Microsoft points ($4.99). I guess that’s not too bad for the added convenience. Harmonix’s official announcement says:
CAMBRIDGE, MA – September 4, 2008 - In an industry first, Harmonix Music Systems, the leading developer of music-based games, and MTV Games announced today the release of a title update for Rock Band on the Xbox™ 360™ videogame and entertainment system from Microsoft that will make it possible for owners of the original Rock Band to export 55 tracks from the original Rock Band disc for play in the soon-to-be released Rock Band 2.
Beginning today, September 4th, the title update will add an “export disc” tab under the extras option in the Rock Band menus, allowing owners of the original Rock Band to expand their Rock Band 2 library to include 55 tracks from the original Rock Band track list for the nominal fee of $4.99 (400 Microsoft Points). In addition, this patch is required for all future downloadable content releases for Rock Band. Previously purchased DLC will not be affected.
The selection of 55 exportable Rock Band tracks joins the weekly downloadable content list of over 200 songs to date and Rock Band 2’sforthcoming setlist of over 100 songs  adding to the ever expanding Rock Band Music Library. By the end of 2008, Harmonix has promised an unprecedented 500 songs will be available for the Rock Band platform. For a complete list of Rock Band songs available for purchase and download to date, please go to http://www.rockband.com/dlc.
I’m still not sure if the loophole exists that you could just rent Rock Band, export the songs, and then play them all on Rock Band 2 (if it’s your first Rock Band game). We’ll know once all those wily little gamers start trying to do so, I’m guessing.