jcroy
Senior HTF Member
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A manufacturing error at the replication plant isn't going to result in a single layered release instead of the intended dual layered product.
Definitely. It rarely ever results in a single-layered disc.
Manufacturing errors will almost always manifest themselves as random bad sectors. A frequent place where such random bad sectors due to manufacturing defects show up, is around the transition between the two layers on a dual-layered disc.
I can only think of one disc in my collection, where a manufacturing error resulted in a single-layered disc. It turned out the second layer was completely unreadable, which mostly had the special features. Nevertheless, the first layer was completely readable, which had the episodes intact and were encrypted with css. (For this particular disc, I strongly suspect it was incorrectly manufactured as a single-layer disc from the beginning).