OK I looked up some information...
A single layered bluray disc is 25GB and can hold 2 hours of high definition video. A dual-layered bluray disc is 50GB and can hold 4 hours of HD video.
A dual-layered DVD is 9GB and can only hold 40 minutes of HD video.
So if you do the math it takes 12.5 GB of space to hold 1 hour of high definition CG. That\'s nearly 1 and a half dual layered DVDs for high def CG alone. Games like Final Fantasy usually average 1 hr of CG.
So that leaves Square Enix just 5.5GB to finish the rest of Final Fantasy XIII and keep it on
2 dual-layered DVDs.
But it\'s not just the usual suspects (RPGS) who are worried about the space. The DOA team is concerned as well. I really can\'t and dont want to see a 2 disc fighting game. So before long I can imagine certain games in almost every genre will need more than 9GB of space.
Recently I went over to a friend\'s house and he had all the LOTR special edition discs, and I was shocked they had to spread the movie over 2 discs, (with the extras taking up yet 2 more discs) and it was annoying as can be having to eject the discs over and over so he could just show me the extra scenes and easter eggs.
Same goes with games. Whenever I want to play FF7 again I want to sometimes go to disc 2 or then to 3 and believe me having to get up all the time to switch discs has gotten annoying after being so use to games being on one disc during the PS2 generation.
Just like with PS2, games at first probably won\'t need the extra space. Alot of first generation PS2 games were released on CD. Then almost every single game needed DVD. I see this happening with the current generation.
DVDs are fine for this generation if you don\'t mind losing titles like Final Fantasy XIII or you don\'t care about popping in disc 2 of the latest DOA game just to see the ending cutscene.
Could happen, but doubtful. Developers are still not using the full space of the DVD format. Not saying it won\'t, but I truly doubt it.
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Maybe developers didnt use all 9GBs of dual-layered DVDs last generation, but this generation there is absolutley no doubt that alot of games will blow by 9GBs. Final Fantasy XIII is the first game that I know of that has confirmed it was not possible on DVD, and I\'m sure the list will continue to grow larger and larger as we get deeper into the PS3\'s lifespan.