[quote name='javeryh']I would think it's due more to the fact that no one has master recordings of the old songs that can be separated into vocals, drums, etc. If the master track is available I would think that is what they would use. Are there any songs in GHIII that are originals but are in Rock Band as covers? I'm pretty sure the songs that overlap are all the same...[/QUOTE]
Jukebox Hero out of this pack is a master track in GHIII but cover in Rock Band.
That's not really the argument though. It was asked why one would assume DLC for Rock Band would be covers. When it comes to classic rock, Rock Band leans heavily on covers as history shows. As much as I, and many others, would like it to be the other way around, that's just not the case.
It has me wondering now if the full albums will be master recordings or an entire cover album. If they are covers, they are setting themselves up for failure. No one will pay $20(?) for a cover band album.