'Up' selling: Disney forces its biggest fans to upgrade to Blu-ray

When I rent movies, do I devour the DVD extras? Sure, lots of times the audio commentary is just a track of actors and directors waxing important and mostly ignoring the images on the screen, but they can still be dishy and insidery, and for my favorite movies, they can almost make purchasing the DVD worth the money.

Disney DVD knows there are lots of fans like me. For years, it has released its biggest titles in a variety of volumes. There's often a simple one-disc version for people who just want to see the movie without any extras, and maybe a two-disc version loaded up with more outtakes and mini-documentaries.