Redump Forum

Thank you for answering.
I once again recognized that PLEXTOR was a really good drive maker.

"Without updating the TOC."
What should I do to update?

"Of course. And if the Audio CD has more sectors than your data+audio disc, you will be able to read the offset-shifted data from leadout even without the overreading into leadout feature."
In other words, is there no problem if it supports over reading?

hoolnoo wrote:"Without updating the TOC."
What should I do to update?

The TOC gets updated when you press the "eject" button on the drive or when you send the "eject" command from the operating system. If you want to read the disc as scrambled on a "normal" drive, you need to insert the audio CD, then to swap it with the data CD, the drive will "think" the audio CD is still inserted and show you the data without descrambling.

hoolnoo wrote:"Of course. And if the Audio CD has more sectors than your data+audio disc, you will be able to read the offset-shifted data from leadout even without the overreading into leadout feature."
In other words, is there no problem if it supports over reading?

If your drive supports overreading, you don't need to use swapping to read the audio tracks. But if you want to read the data as scrambled and your drive doesn't support the D8, D9 commands, you need to use swapping.

”The TOC gets updated when you press the "eject" button on the drive or when you send the "eject" command from the operating system. If you want to read the disc as scrambled on a "normal" drive, you need to insert the audio CD, then to swap it with the data CD, the drive will "think" the audio CD is still inserted and show you the data without descrambling.”
I understand that the TOC will be updated if you use "eject" after exchanging data CD from audio CD without using "eject", but is there any chance that it will be descrambled at that time?


”If your drive supports overreading, you don't need to use swapping to read the audio tracks. But if you want to read the data as scrambled and your drive doesn't support the D8, D9 commands, you need to use swapping.”
I understand that ripping can start immediately if overreading is possible and there is no data track.
Can not use DIC with drives that can not be overreading?

hoolnoo wrote:I understand that the TOC will be updated if you use "eject" after exchanging data CD from audio CD without using "eject", but is there any chance that it will be descrambled at that time?

If you use "eject", the tray will open and that's all. If you close it normally, the drive will load the data CD TOC and will read and descramble the data like before.

hoolnoo wrote:Can not use DIC with drives that can not be overreading?

Overreading is needed to read the last audio track upto the end. When the combined offset is positive, the data is shifted into lead-out and you need overreading feature or swapping to read the shifted bytes. And the track will be incomplete without those bytes.

Thank you for answers to many questions.
Please allow me to ask some questions at the end.

The default value for /c2 is 4000. Is it okay to change the value if it takes a long time?

"Be aware that the PX-716 series (possibly other DVD drives) is unsuitable for dumping some SafeDisc versions (Illegal MSF)."
Can't read SafeDisc using 0xbe on px-716 series?

"SecuROM (v4.x or higher), StarForce, CD-Cops [recording density]
=> These needs DPM (Data position measurement). Cue, ccd doesn't support DPM. You need to use the Alcohol 120/52% to store it, "
Is written to use Alcohol,
"Alpha-ROM, ROOT, TAGES [duplicated (double, triple) sector]
=> It can read in reverse, but specifications are not decided in redump.org "
What alternative software should I use to rip these discs?

During my trial, I realized that DIC is not compatible with Safe-Disc (DVD).
What alternative software should I use for ripping?

hoolnoo wrote:The default value for /c2 is 4000. Is it okay to change the value if it takes a long time?

It only takes a long time if the disc is damaged, for the good discs /c2 9999 shouldn't be longer than /c2 1. And if your disc is damaged it's upto you to decide if you want to wait for as good dump as possible or not.

I hope our PC gurus will answer the rest of the questions.

I raise the error retry up to 25000 with my 4x read batch file, so yes it's fine.

Nope, 716 and 760 (and others) just have a firmware bug, most safedisc will work fine but some will fail. This is for CD SafeDisc only. I recommend a PX-W5224TA or Premium 1/2 as these drives can dump all. Keep the 716A for DVD and LaserLock.

We are currently not saving DPM. You can use either Alcohol or Daemon Tools.

These sector protections we are currently trying to find or create a solution for. In the mean time Dameon Tools can dump them for you own use, but the images are encrypted so not useful to us.

What is the problem with SafeDisc DVD?

Nexy wrote:716 and 760 (and others) just have a firmware bug, most safedisc will work fine but some will fail.

Does anyone tested if this firmware bug is found on every firmware versions ? Just a thought, as it is not clearly stated.

Thank you very much Administrator.

Nexy wrote:What is the problem with SafeDisc DVD?

I think the "/sf" for DVDs was only supported in a single test version and was rejected from the 'main' build for some reason?