DVD Deterioration?

Submitted by Morbus Iff on Thu, 2003-02-13 17:23

With over 250 DVDs in my collection, this article and analysis of DVD Rot is worrisome. Apparently, it's a rare phenomenon regarding poorly manufactured discs (although, I do have a lot of horror movies, which are generally low budget affairs, which could...):

What exactly are the "spots"? How did the "spots" get there? Were they there from 'day 1' or have they 'developed' over time? Are the "spots" responsible for the picture break-ups that occur immediately after the layer change in my DVD?