I bought this Blu-ray version because I owned the DVD version which was lousy, lousy, lousy. The Blu-ray is so much better that it looks like the movie was shot in the past 5 years rather than in the early 80's. Colors really pop and the detail is extraordinary. The scale models of the mining structures on Io are fabulous. Director Peter Hyams and his special effects crew had no idea people would be watching these scenes decades later on widescreen LCD's and digital playback equipment. They don't look realistic, but they have the detail and beauty of works of art.
Speaking of art, composer Jerry Goldsmith provided one of his typically excellent scores full of rousing excitement and relentless menace. It sounds great--vivid and propulsive with the brass and percussion-heavy orchestral textures coming through clear.
And of course, there's at least one great-I mean really great, classic-chase scene. Sean Connery chases a drug pusher through a variety of residential and sleeping quarters which culminates in a fist and knife fight in an employee cafeteria. The sleeping and residential area is an enormous structure composed of individual but interlocked small cages--and it's always crowded with walking, sleeping, and showering mine workers. The camera work is phenomenal following this cat-and-mouse chase with smooth and fluid shots--the editing during this chase scene courtesy of Stuart Baird--contributes to the high energy of this whole scene.
Add to that excellent acting from Connery, Frances Sternhagen, and Peter Boyle.
The only drawback are the attempts to reinvent High Noon. Shotguns are a bad idea inside of space stations, especially inside of greenhouses. The final fight outside of the station is anticlimactic after the abovementioned foot chase.
Overall, though, this movie really kicks it on every possible level. And let me emphasize there's no comparison between this Blu-ray and the previous Warner Brothers DVD.