Story-http://www.ps3fanboy.com/2007/08/14/heavenly-sword-has-10gb-of-sound-data-alone/
Their source-http://www.developmag.com/tutorials/28/Heard-About-Heavenly-Sword

"Heavenly Sword has over 10 GB of sound FX, with three and a half hours of music, 4500 different lines of dialogue, and an hour and a half of cut scenes recorded in eleven (!) different languages. This means that without even counting the textures, art, models or anything else, the game couldn't fit on a normal DVD. It also means we're in for a hell of an aural treat when the game comes out next month."

10GB's and that's not counting anything else but sound.

hahah gotta love Blu Ray... cant wait for this game

And ironically enough, the other thread with this very same topic that was here first is right next to this one on the tread list.

I thought I didn't see that one, but oh well. If a mod would be so kind as to remove this thread, thanks. 

if its 10gb of sound wats the bet that the gameplay will be bad because they thought audio is a must have over eveything else

Searching the forum for "10GB" would have helped imensely:
http://vgchartz.com/forum/search.php?keyword=10gb

Heck even going to the Sony forum before posting a Sony news would have help:
http://vgchartz.com/forum/board.php?id=5

I mean, it wasn't that hard to find this one, now was it?
http://vgchartz.com/forum/thread.php?id=5588