I presume you are refering to a movie?
You would need a dvd ripper which will create a avi of the movie. You can then use something like virtualdubmod to demux the audio stream into a seperate mp3 file. This can then be loaded into a audio editor.
Dell XPS 13 9370 (2018) review
No need to scan sketches into your computer with Moleskine's new smart pen
How to use 3D Touch on iPhone
Comment importer des contacts d’un iPhone à un autre iPhone ?