The usual exception to Buena Vista’s threadbare DVDs are the collectors’ editions from its Miramax and Dimension labels. However, Dimension’s so-called “collectors edition” for the seventh installment in the Halloween fright franchise,H20 , is about as unspecial as a typical Buena Vista disc. What’s supposed to set this one apart is a longer-than-usual behind-the-scenes documentary (titled “Unmasking the Horror”); a music video; and an interactive trivia game. The documentary is interesting, but the 10-question game is rather easy and has no repeat value whatsoever; even worse is the music video. I wish I could tell you what the song is called and who performs it, but I can’t, for nowhere on the disc menus, packaging, or video itself is that pertinent information. If the company really wanted to put out a special edition of this film, it should have taken a bit more time to come up with more substantial extras.