Let's just hope that if a game needs more than 50GB that they don't stinge out and cut things to shove it all on one a disc, they should just use a 2nd BD DL. I'd rather have to switch discs than have content cut out or reduced in quality.
I dont think we will see these disks on ps3. As most games are not even 7-10 gigs.Like Dantas inferno on the X-box 360 is only 7.5 gigs fits nicely on a dual layer disk. So Im pretty sure the PS3 version is the same size.And I do belive PS3 reads dual layer disks!
So for back-up purposes [soon I hope!!] dual layers will work fine for the PS3 for majority of games! I'v used S.A.K. and all my games will fit on dual layer, So I don't think anyone will need to go and buy a blue-ray burner, any burner with dl combatibility will work fine. And you can pick one up from wal-mart for around $60-$75.. either that or a nice usb loader would be nice.