It has been quite awhile since I last watched the dvd. I remember that the picture quality was quite good and the DTS sounds very dynamic at times with a great sense of spatiality. I can't remember how the extra's were. I listed the extra's for you:
Audio Commentary Trailers Deleted Scenes 'Making Of' Documentary Production Notes
The dvd can be had very cheap at the moment. I personally liked the movie with Michael Douglas being one of my favorit actors.
You can always look at dvdbasen for reviews on the net. There should be plenty.