yeah it certainly would be nice if they incorperated this into the next Optical disc standard. that next one will probably be using blue laser tech, rather then the red that has been stretched to the max with DVD's.
now I was wondering as was someone else, why don't they use lasers that are higher frequency then what we see (X-Ray etc). well it's cause they don't exist, at least at consumer prices! I'll bet that there are a few which DO operate at higher frequencies, however they are probably either experimental, or just really expensive.