Rock Band DLC coming to Wii and PS2 as retail disc this July [Update]

PlayStation 2 and Wii owners can whine all they'd like about getting some downloadable content for their respective versions of Rock Band. But guess what? It's not happening. However, Harmonix and MTV Games have announced a solution today in the form of a retail disc, Rock Band Track Pack Volume 1, which will hit shelves on July 15 for $29.99.

The disc will include 20 tracks, which puts each song at $1.50, slightly cheaper (in most cases) than the DLC available for Xbox 360 and PS3. The songs included are all songs that are available via the in-game Rock Band Music Store, including tracks from Faith No More, Paramore, Grateful Dead, and more. 

The full list of tracks available on the Rock Band Track Pack Volume 1 can be found after the jump.

[Update: To clear up any confusion, I contacted a Harmonix rep who clarified that this game is not a standalone disc, and will require the original software to run. I'm trying to get information on how exactly that will work, and I'll be sure to update when and if I get more details.]

[Update 2: It appears there has been some confusion and that this disc will indeed be a standalone game that will not require the original Rock Band software to play.]