Sometimes they are strips of plastic coated metal. Other times they are a spiral of metal on a sticky square. And almost always they are far away from the discs they are protecting. Unfortunately, my new Star Trek (the recent film) disk is scratched straight from the box. The scratches correspond to the edges of a square stuck right under the disc. It played alright up to Nero about to put a li'l worm in Pike's mouth, froze, then skipped into the next scene. Playing it on my progressive-scan player had it showing a few more seconds, then some weird sounds, but it still skipped forward. Would anyone at Paramount care my disc is damaged and provide a replacement? The package also contains a digital download version for iTunes, but I doubt I could make my own DVD from that (or am I mistaken?).