I’m sure a way exists to take audio from a DVD and save it as some sort of audio-only file. What software do I need to do this? Can I save the entire soundtrack and then pull out only the things I want?
I own the DVD, and I’m not planning to distribute any sound files outside my own PC.
That is also as likely to work for copyright violations as it is for the legitimate purpose described in the OP.
633squadron, check out www.videohelp.com for tutorials and software you can use for this and other video conversion tasks.
Most commercial DVDs are encrypted. Breaking the encryption, while easy to do and often the only way you can exercise your fair use rights, is illegal under the Digital Millennium Copyright Act. But if you have an unencrypted DVD (many adult DVDs, for example, are unencrypted), you can legally extract the audio by using a demultiplexing tool - search for “VOB demuxer”.
This will produce a file containing the audio in whatever format it’s encoded with for the DVD, which is usually Dolby Digital (AC3) for North American DVDs. You can use a program called BeSweet to convert from that format to WAV or MP3.
Well, yes. For the same reason, you could be in violation of the DMCA for owning a marker. However, you are more likely (theoretically, at least) to be legally hassled by a goon for owning software, then for owning a male/male headphone cable.