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Originally Posted by fljoemon Looks like the DVD navigation software makers have changed the encryption on these discs. I ordered an updated disc for my Infiniti G35 (the maker is Zenrin - DVD Version 7.1) ans now I cannot make a backup copy either using BenQ and the Verbatim DVD+R Dual Layer disks. I even tried it on my new BenQ 1655 and exact same results ... the disc won't read in the car navigation system.
So unless someone figures out the encryption it will be hard to make a backup of these discs. |
Hmm.. this is bad news. So, you're still able to copy older Zenrin DVDs? I'm hoping the new Navteq DVDs aren't protected either. It really doesn't seem like it though. Unless they've designed their older drives to support some sort of special copy-protection, they're really limited on what they can do to protect the discs.
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Originally Posted by fast330ci Also one other thing I noticed between original NAV DVD and burned DVD+R DL is the track path, original DVD is Parallel Track Path (PTP) and the backup DVD+R DL is Opposite Track Path (OTP). Does anyone know if this could be the culprit? Anybody who has the DVD-R DL, can you please confirm if it is PTP or OTP? The burned DVD-R is PTP like the original DVD, this could be coincident.
Anybody has any suggestions, please let me know. Ken830, try burning DVD-R and let me know. |
Fast 330ci,
Thanks for the good news. Now, let me clarify. Since you removed two files, did you just copy the remaining files/folders? Using something like
Nero to burn the remaining files/folders as a regular data disc? I'll give it a try tomorrow (later today, since it's like 3am) and will let you know.
BTW, aLL dual/double-layer drives burn discs at OTP. There's just no way around it. That's all we have at the moment. It may or may not be the culprit, but since others have been successful before, I'm hoping that it's not.