I got a bunch of dvd from some friend with a lot of movies, I can see all of them but many of them I can't hear, my Promac keep telling me I am missing some software but no idea which one, shows something like this: dmd-nt2-cd1.avi dmd-nt2-cd1.srt.....need some software for this, ??????? dmd-nt2-cd2.avi dmd-nt2-cd2.srt.....need somesoftware for this too, ???? I am new with mac and computers are not so easy for me , if someone got any idea about this and how I can solve this problem (with an easy language I can understand ) I will appreciate!!!!. thanks a lot. email@example.com. Patagonia.