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#21
OK. That gives you sometime to experiment on the present discs. :)
While mastering the discs, either one of two types of deviations from the Redbook standards is deliberately introduced to confuse CD/DVD ROM drives to prevent extraction.
1. Multiple sessions with wrong TOC. Standalone players only recognise the first session and play true. Computer drives read all sessions and get confused.
2. Deliberately introduce what is known as Level 2 errors. It does not affect playing analog audio but does extraction.
Download and install the free version of Isobuster. IsoBuster: Recover file data from CD, DVD, BD, Hard Drive, USB, SD, Floppy, etc.
1 .Check whether your CDs show multiple sessions. Extract the tracks in the first session. Of course it will be the original HQ wave.
2. To deal with level 2 errors, the computer drive should be capable of reporting such errors to the software. ( I understand that many Plextor drives and Liteon drives were/are capable of it.) If your drive is one, during the extraction process I would presume, IsoBuster will stop and may ask you on how to deal with it. Select to "Omit" those sectors.
This is based purely on analysis and inference. No personal experience of encountering any such CD and trying the above. This may or may not work. ( I had stopped dabbling with audio and video long ago.:)) This is for you to experiment.
(Stop other programs using the CD and read the CD with ISObuster)
Last edited by jumanji; 22 Mar 2014 at 04:24.