What is Disney's Interest in this War?

[Luis_A51]

Im sure the margins on Bluray are a factor. $30-35 a pop even for older movies compared to $10-25 for DVDs has to result in much more money/disk going to Disney. Also likely hope that with top-notch Bluray versions you will upgrade your older DVDs

Thats probably why they prefered the 50gig disks (and probably took into account the higher bitrate too) If the BD version is AMAZING, then you're likely to upgrade over the DVD version. If the high-def version is only slightly better, then you will stick with your existing DVD version or might skimp and just buy the dvd. Then they either 1) lose the new sale entirely or 2) sell you a less profitable disc. That mindset is probably why disney puts soooooooo much effort into their BD releases.

And of course BD+ is a big factor (DVD had region coding, albeit seemingly less effective due to region free players)