1:Are all dvd films identical copies of each other , off the gold master disk, for instance say you buy 2 copies of lord of the rings will they both have the same identical picture or will they both be different even though they came of the same pressing machine. I question this because i bought the body guard movie and the picture wasnt that good so i thought if i take it back and swap it for another copy of the bodyguard maybe the picture will be better. Which would then mean no copy is identical 2:Is there such a thing as disk rot, where the data actually decays,or holes appearing on the disks. 3:Have any of you bought dvds and noticed on the outer side of the disk parts of the foil missing and will this spread. no really. 4:If you buy a dvd and the picture isnt good and is grainy and suffering from picture noise and pixellation, do you blame the actuall master copy of the movie or bad authoring or the actuall disk quality.