"Drive speed matters more to me [than capacity], and Blu-ray is slower."More info at GWN.
The developer is apparently duplicating critical data on the Blu-ray disc in order to fill up all the unused space, which improves load times for the game. Tests have shown that load times on the PS3 could be slightly slower than those on the Xbox 360, which has lead the developer to using data duplication techniques to improve the PS3's performance.
Oblivion developer says Blu-ray is slower
Posted on Saturday, January 20 2007 @ 3:15 CET by Thomas De Maesschalck