Saw the movie a zillion years ago (on SelecTV?). Back when it was new. It was great.
Saw the musical... with a good deal of special effect related delays. Wish they didn't make it a musical (other than the bedroom music sequence, that was great).
It was a really good movie, but maybe a little too 80s?
CDs have been discs since CD came out. Disks were the really floppy turn floppy turn rigid things you put in a drive.
DVD is a "disc" as well.
Weirdly, we refer to blu-ray discs as Blu-rays... ie the misspelled thing that is scanning the disc. 4K blu-rays are just called 4K, which at least is the alleged resolution on the disc.
I'm not proud of this but 40 years ago my life was a mess. I don't think I ever watched this movie all the way through. I only caught bits and pieces of it on cable TV.