So I think I saw a post on here about dvds in virtual machines. Got me thinking, and here's my results trying to play a dvd using linux running inside a vm.

Setup:
Windows 10 Professional
Hyper-V VM running Debian 4.19
Xming website release for video (also works with the free version)
PulseAudio for windows to play sound

So, pretty straightforward, right? Insert DVD, tell Hyper-V to map the dvd drive to the virtual one and run `vlc dvd:///dev/sr0'
But of course, DVDs have copy protection (read: playback protection), so I downloaded the dvdcss package file from videolan's ftp server and installed it. This still didn't work though, vlc said it couldn't decode the dvd. Then, to make sure my dvd was okay I played it with vlc in windows, which worked fine. When I tried again inside the vm it suddenly "worked". Maybe running it inside of a vm prevents some access to the dvd drive required for decoding? Go figure.

The video was very corrupted though, and vlc puked out a lot of errors.

So in conclusion, playing a dvd in a vm is weird, unwatchable, inefficient and only works if you can also play it on the host.

And yes the audio is just as choppy as the video, no idea what causes this. I can play normal videos fine (for some reason that doesn't really work with the free version of xming) although it uses about 200% cpu since there's no hardware acceleration, and the framerate isn't necessarily what it is supposed to be.