Hello signals.
I've been busy with other things, but I finally got around to checking your link suggestions.
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This is a fascinating topic to me but beyond the depth of my knowledge to give you definitive answers--I'm still looking for them myself! I do think the copying algorithms involve more complex choices than 1 and 2 listed at the bottom of your post, though, and those choices would only provide the proper results on discs with no real read errors (as opposed to bad data purposely inserted in the mastering process). Here are some things you can read that provide some insight on the decrypting process: this one in particular is good (but a little hard to follow);
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Yes, and it's mostly procedure, not explanation. I think I've seen that guide and actually used FixVTS before.
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this forum has lots of good topics as well,
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doom9 I've also read. I think that I've learned more there than anywhere, but never an answer to this particular question.
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as do the CD Freaks forums, where we reside now.
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These are all fine as far as they go. But they're all mostly "do this" or "try that". There's very little (that I could find) about what is actually going on in the copy process, and nothing about why players can read and decode DVDs without needing updates but copiers can't.
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Check this thread every day or so, someone more knowledgeable may come along and enlighten us. And a belated welcome to the DVDFab forum.
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Thanks.
Viewing the source code might answer my question. I was a software engineer in an earlier life. I don't suppose the source code is available for DVDFab? If not then I guess I'm out of luck for now.
Thanks again for all your help.
DocuPerson.