This is also true of DRM-free files on thumbdrives. More of my friends have devices with USB ports that can run VLC than optical drives these days (not to mention the whole zone thing, which is quickly a pain when you're a movie nerd)... thankfully generating a DRM-free file from a DVD is trivial.
- signed, someone who also owns lots of CDs and DVDs, mostly old non US-produced things that are close to unfindable on streaming services :)