I have a pretty good sized collection on DVD/Blu-ray and many of the titles go OOP on a regular basis according to the offers I get. I don't sell review screeners or voting copies (I try to give duplicates to other reviewers since companies never want them back) but I'd be surprised if the scenes comprising most modern titles were not legally available somewhere. Plus, nowadays most back catalog material is bought cheap for compilations, usually unlabeled as such unfortunately.