Harmy said:

Actually, I think that the comparison of BD to LD is quite accurate in the sense that BD is to DVD what LD was to VHS (here's hoping that BD will become somewhat more mainstream though).

I think this is the reason why BD will ultimately fail. There is nothing wrong with BD but there is nothing exceptionally new about it either. It's like a DVD but with higher resolution and while HD-TVs have become more common so have upscaling algorithms. Do I shell out another $20 to get the movie on Blu-ray or do I use my DVD? It's like the Star Trek rule, every movie with an odd number, or every other Bond being terrible (though Timothy Dalton was just mis-cast). It's just that DVD was such a revolution that BD didn't have enough new stuff to offer. Whatever the next home video medium will be, it will rock in terms of sales but BD, while still a good medium, is bound to crash.