Handbrake can convert to other formats, but depending on the protection employed on the original, you may have to try a different ripping/conversion application.
SnapZ Pro might produce a different screen shot result if you happen to have that. The upgraded version will also allow you to record the video, which might help you as well.
On a Mac since 1984. Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.