How Do I Rip an Isolated Score on a Macintosh Computer

Hello. I’m interested in ripping scores from films without any other sounds playing in the background, and I’ve been having a difficult time trying to find the right software I need for it, because the software I do find either gives me scores with dialogue or other sounds in the background (Gunshots, water spilling, etc.) or aren’t compatible with Macintosh, or simply won’t work, because of a problem with the software. Can someone please help tell me how to do this so that I know how to get it right, and please help me find what kind of software I need that works with Macintosh computers so I don’t have to worry about dialogue or other background sounds (Gunshots, water spilling, etc.) when I’m ripping a score? Thanks.