Actually iclim I believe that is possible. The upgrade to HD does take up more space. My point isn't that DVD-9 is automatically just as good, it's simply that using Blu-ray to take up more space isn't automatically better. The thing is that although Blu-ray gives you lots of extra size, the ways developers are using it are not increasing game content. That would require much more (and much more costly) development effort and no one, not even Sony, has shown willingness to put forth that effort.
Also, you will never have size limit issues on a non HD dvd-9 console like the Wii. I mean Twilight Princess is a 40 hour game that fit on a 1.5GB GC minidisk. If you look at the amount of game storage space those graphics take on PS3 games compared to the size upgrade there is really no difference in content space available between the Wii and PS3. The 360 is another story, but they are still managing to make games like Bioshock and Mass Effect. Games with lots of FMV are going on multiple discs. That may be a pain to some, but it's never really bothered me on the PSone...
