(as always, feel free to agree, disagree, or add what you feel makes for good DVD supplements) 1. Audio commentaries that take it as a given that the viewer has seen the movie. Keeping in mind that the movie on the DVD is meant to be viewed and re-viewed, a commentary that assumes that the viewer has not yet seen the movie is (pardon me for being blunt) patently ridiculous and makes for a commentary that is not worth hearing more than once or at all. Prime offender: 'The Mummy: Ultimate Edition' Brendan Fraser commentary (granted he admitted he hadn't seen the movie in a long time and forgot a lot of it; shouldn't commentators have a good idea of what happens and what happened behind the scenes in the movie they are to comment about for permanent storage on disc?). Done the right way: 'Forrest Gump' Robert Zemeckis, Rick Carter, and Steve Starkey commentary (they didn't hesitate to mention so-called 'spoilers'). Hand-in-hand with the first, 2. Commentaries that are insightful. Prime example of an excellent commentary: Jodie Foster's commentary for 'Contact'. Prime example of a terrible commentary: Dean Devlin and Roland Emmerich's 'Independence Day' commentary (to be facetious, though fairly close to what was recorded) alternating between 'this is fake' and 'this is real' throughout the movie. 3. Behind the scenes documentaries that *Do Not* have a narrator/voice-over or on-screen "host". I find that these work most effectively. Having a host (even though he or she may have been in the movie; in such a case, the host doesn't usually express his or her personal feelings/opinions/experiences anyway) reading script from a TelePrompter or cue cards isn't as engaging as letting multiple people involved express themselves. Let those involved in the making of the movie speak to an off-screen interviewer with no verbal contributions/interruptions by the interviewer. Of course, occasionally the DVD viewer must hear the interviewer interject to help clarify something for the viewer. The right way: 'The Fugitive', 'Magnolia', and 'Star Wars: Episode I' documentaries. The wrong way: The 'Mad Max' and the Heather Graham-hosted 'From Hell' documentaries. 4. Behind the scenes documentaries that feature non-English speaking individuals speaking their natural/native tongue complemented with English subtitles at the most. As with the non-English feature, the included documentaries should not strive to obliterate an individual's voice and feelings/enthusiasm with an English over-dub. The right way: In the 'Matrix Revisited' interviews with Yuen Woo Ping, Woo Ping's voice was presented clearly with accompanying English subtitles. The wrong way: The 'Kiss of the Dragon' interview with Corey Yuen has an atrocious English over-dub.