Dgc1808 on 10 August 2011
If it's over 5GB's on the PS3 it's optional. Some rule SONY has set which is why MGS4 had to delete and rewrite to the HDD file in between acts. The only time it went to 7GB was if you also played MGO and downloaded it's freakishly painfully slow updates.
In the case of DC Universe i'm thinking it was an exception because of it being an MMO, and that 15GB was technically the entire game. It also jumped to 17GB with it's first big update which was either launch day or shortly after.
4 ≈ One
