New Rock Band 3 DLC Not Compatible With Rock Band 1 and 2
Rock Band is in the wild, and the first waves of downloadable songs are already available. If you haven’t picked up Harmonix’s third installment in the series yet, you probably shouldn’t run out and grab the new DLC for your copy of Rock Band.
Harmonix has told Joystiq that “due to the new authoring standards, inclusion of new instruments, new lighting / venue cues, etc.” the new Rock Band 3 DLC won’t be compatible with previous editions of the game.
On the plus side, Harmonix is making it difficult to buy songs that are not compatible. Songs for Rock Band 3 won’t appear in the in-game music stores for Rock Band 1 and 2. They also won’t show up on the standalone music store or in the console marketplaces.
I don’t think this is a big deal, especially since Rock Band 3 is such a huge step forward from the previous titles. At least you can still import your songs from previous Rock Band titles, and your old DLC still works, right?