NJ5 on 24 November 2007
Necessary? Of course not. Desirable? Maybe, but probably not at the expensive level that it seems to come at.
However, statements such as "game X uses Y% of the disc's capacity" mean nothing. Space is not a big bottleneck on the PS3, so it's natural that developers don't worry about optimizing for space.
There are some things which Blu-Ray allows but are not an advantage for most people, such as uncompressed audio. Very few people have the hardware and wetware necessary to tell the difference between compressed and uncompressed audio (good speakers and extremely good ears respectively).
My Mario Kart Wii friend code: 2707-1866-0957
