Or if you're watching the DVD on your computer. I usually just open up the browser, drag the window to my second monitor, get the movie started on the main monitor and do DiF that way. On the occasions where I don't have the movie I either fire it up on netflix or take a trip to walmart where I can either purchase the movie outright or rent it through the redbox there. If that doesn't work then I do download it, because - frankly - if the studios really wanted me to watch the movie through more legal channels, they had several opportunities there to get the movie into my hands in a legit fashion.

If it were as easy as going to amazon.com and buying a DVD that I could then instantly download and burn on my own, then I'd do that with pretty much every movie. Studios would never do that because they assume that I'd just upload the movie to other people via some torrent site or usenet. Unfortunately for them, people do that regardless. I will not ever purchase a movie or music for download with any sort of DRM going on. There have already been several instances where consumers have been screwed when the DRM servers got shut down due to lack of profit or whatever.

If Warner Bros were to start a site that let me stream their entire backlog of films for $10 a month or something, and purchase downloadable / burnable DVD's of any of those movies for a further $5 or so each, I would sign up in a heartbeat and they would most likely make a lot of money. Movie and music studios still operate under the false impression that they control the means by which people consume their media, and thus have an effect on what becomes popular or not. This is still somewhat true, but all those garage bands and indie films they've turned down now have a variety of avenues to promote and distribute their wares and are becoming successful.

I have long since switched all of my music purchasing to bandcamp, amazon.com and other instant-access digital distribution methods. If the same sort of services were available for movies, I would gladly switch to that. The only reason those services don't exist is because anyone with a cheap PC and some cheap instruments / software / hardware can produce music and get pretty good quality. It is prohibitively expensive to produce a feature-length film, but given another decade or so you can probably assume that the costs will continue to drop dramatically and that indie films will start to rival their big studio counterparts in terms of effects and quality of product, not to mention the plausibility of creating successful product for niche markets that big studios just can't afford to go after.