I hadn't seen Mardock Scramble before buying the BD release, so purchasing this was something of a gamble - and having now watched the film, I can say it was a gamble worth taking.
An engaging story of despair and retribution set in a dark, futuristic world, Mardock Scramble is visually fantastic. From the initial scenes of an almost Tron-like city, to a brief but frantic car chase, onto gun battles in near total darkness, the animation is constantly top-notch and the high definition picture on the BD really makes for stunning visuals.
The audio is good, having only watched the movie with the Japanese audio track, I can't comment on the quality of the English dub. The Japanese voice actors all do a great job, particularly those of some of the more grotesque characters that the film presents. The soundtrack fits well without having any standout moments, but generally adds depth and atmosphere throughout the picture.
My only slight complaint with the movie is that it is only just over an hour long, and with the story ending on a cliffhanger, I found that the film cut off just as I was really getting into it.
The BD features the theatrical release, and the Director's Cut (though this is only available with Japanese audio and English subtitles), with the theatrical release being best for anyone who does not want to be subjected to some of the film's more explicit sexual content. Other extras include trailers and TV spots, though these aren't particularly fascinating.
Overall, aside from the short length, this is a great anime movie and one that I would definitely recommend to anime fans. If you are a fan of series that feature gun toting action, such as Hellsing or Hellsing Ultimate, then Mardock Scramble might be right up your alley.