I've loved this movie since it came out. Orig. had VHS, then DVD until just the other when day my husband bought me the 4K Blu-ray Steel Book that came out almost a year ago now. It's a beautiful movie in 1080p or 4K HDR, even on those old formats too. I have watched it in all the formats in the past just because it's a great movie, action, drama, character development, and it all works. A Tom Clancy submarine movie with Sean Connery, as good as it can get.