I saw a small lot of movie disks for sale in a junk shop. The titles were Pink Panther, and other musicals. I am not sure what a Laser disk looks like, but understood it to be much like an LP, in a large sleeve, whereas these movies I saw were in a white plastic container, with no evident means of sliding a disk out. In fact I could not be sure there was a disk inside the thin plastic tray? Can anyone tell me, re these actually LD's or some other format?