Before someone marks this as a duplicate, please read just a little further. :)
I've been using youtube-dl to download audio from SoundCloud and now YouTube. There are several different ways to get audio only from YouTube, but they all seem to yield the same exact file, so I'm not sure which settings I should be using.
I've tried all these and they all give the SAME file. (The MD5s are different, but the size and bitrate are exactly the same.)
--extract-audio --extract-audio --audio-quality 0 -f bestaudio -f bestaudio --audio-quality 0 -f bestaudio/best -f bestaudio/best --audio-quality 0
So my question is: What the heck are the differences between these options if they all give the SAME file? And which option(s) should I be using to get the best quality, untouched audio?