CAV
"Constant angular velocity or Standard Play discs supported several unique features such as freeze frame, variable slow motion and reverse. CAV discs were spun at a constant rotational speed (1800 rpm for 525 line and 1500 rpm for 625 line discs)[20] during playback, with one video frame...
CAV discs were the best!!:)
It is funny that such a big inconvenience was a non-issue for me when I owned it.,
I loved every second of my time with it
I kind of regret giving my entire collection, and player away for free.
My fear is that Soundbars(easy, convenient, not messy) will take over, and Receiver/multi channel speaker systems will be for high end home theater enthusiasts only.