i don't know how true this is but i've heard the following things:
Best Buy's Total sales for xmas season:   26million dvd players, (1 million a day, eh?) 750,000 vcrs.  ...that's close to 30 to 1. jesus.
Time (which = cost in business.) to produce a vcr tape 200 seconds, time to produce a dvd 2 seconds.
Blockbuster's parent company, viacom own paramount studios, mtv, blah blah blah, is a huge producer of dvds, they are huge enzymes in the dvd accelration. (drunk = bad spelling sorry)
my two cents.