I've just purchasd a Samsung DVD-Rom drive, tried to use it to copy a cd last night, put cd in dvd-rom and opened adaptec to copy, took forever and then said no disc in drive E. stuffed around with it for a while, decided to do a re-boot and it worked then but when I took the cd out of th dvd drive it had really odd markings around the edge of the disc, about half a cm wide. It has not stopped the cd from playing, but it is really strange and I have not heard about it before. Has anybody had this problem before. The markings almost look like something hs tried to write to the disc .

With Thanks