Good luck with DVD.
Lately, playing newly purchased DVDs and even DVDs from Netflix means having to listen to previews and other commercials (in addition to the usual Gestapo copyright violation threat) before being allowed by the DVD format to access the actual movie.
how is it like the gestapo?
The way around that is to get DVD ripper software, and use it to copy “just the movie” to your HD, eliminating the FBI warnings, previews, spam, and disk software it tries to load on your computer, etc.
Then, after you watch your movie, you just delete the files, and save the production disk in case there is any copyright argument against you.