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Are you trying to dump severely damaged discs or something? Get them buffed.

Nexy wrote:Are you trying to dump severely damaged discs or something? Get them buffed.

Just a couple of old CD-Rs.

If you remove the /c2 in the command line it will dump without checking for c2 errors BUT it will dump with errors and all so it's not for if you want a good dump but if you are trying to just recover an old CD it will let you get an image you can try to recover at least some of the data off of which is what I did a while back using the same method.

Also try reading the discs in the same drive that wrote them.

/viewtopic.php?p=24618#p24618

psx-collector wrote:

sarami wrote:Without /c2, it reads until the end.

Yes but I meant an option to continue dumping later...

1. The disc has many C2 errors and it needs 10000 or more retries to dump the sector. Imagine that we have many of these sectors. It's not the best way to leave the drive work several days. Also, cold drive reads better! More chances with cold drive!

2. This option would be also great... If no amount of retries was set. The disc was dumped but we need to re-read C2 sectors. Maybe it's possible to code an option to allow the DIC to go to the next sector if all 4000 attempts weren't successful? 4000 with next sector etc. And to go back to these previous sectors to try 4000 attempts again and again.

With the second option we can get as many sectors as possible to go back to really hard sectors.

The best way is to combine both options to allow to read hard sectors after the drive became cold again.

Are you still challenging to dump this disc?

psx-collector wrote:Would be very nice if DIC would try to read next hard sector if previous one wasn't dumped after all retries. It would help to dump all hard sectors leaving only very hard ones. Is it possible to add this function?

Some sectors in your CD-R perhaps can't recover, so resume function is also vain efforts I think. Please get new CD-Rs if it's possible.

sarami wrote:Are you still challenging to dump this disc?

No, it's another disc. No big scratches but some C2. I would try more and more because several sectors were done after 10000-15000 retries so I still have a hope. Cold drive and disc also work better sometimes.

Now it leaves empty sectors after hard sectors which can be done after several retries. A continue option would help to dump at least these readable sectors after hard or very hard sectors.

sarami wrote:Some sectors in your CD-R perhaps can't recover, so resume function is also vain efforts I think. Please get new CD-Rs if it's possible.

No way to get any new ones. They are the only known.

The first one mentioned above is scratched. I still need to resurface it to try again. The second one is not scratched but some sectors are very hard to dump. Maybe even impossible but it's hard to say without continue option. The discs are press/preview discs.

I would try more and more but the only way now is to set millions attempts and to leave the drive to work several days. No way to try with cold drive and disc then.

Spört wrote:Thank you SO MUCH for the Linux support.
Sadly it crashes for me.

Used https://github.com/saramibreak/DiscImag … nux.tar.gz

Three different discs in a PLEXTOR PX-755A.

Every time it crashed, here are logs: https://transfer.sh/1oa0f/errors.7z

I bought a UGREEN USB3.0 TO IDE/SATA adapter instead of motherboard SATA and it works without any problems. So either my hardware or cables were a problem. I should clarify, it is a PX-755SA.



I see some "SubQ Reread [crc16 unmatch] -> NG. Fix manually" lines in _subError.txt, should I be concerned about those? ECC/EDC check is fine.

sarami can you add a link to the wiki which is easily visible about the drives and dumping.

Also what is the status of PX-W1210 , PX-W1610 and PX-W2410 drives?

Thanks.

Spört wrote:I see some "SubQ Reread [crc16 unmatch] -> NG. Fix manually" lines in _subError.txt, should I be concerned about those? ECC/EDC check is fine.

No problem generally.

Nexy wrote:sarami can you add a link to the wiki which is easily visible about the drives and dumping.

See README https://github.com/saramibreak/DiscImag … /README.md

Nexy wrote:Also what is the status of PX-W1210 , PX-W1610 and PX-W2410 drives?

Not supported because these drives don't support "OpCode[0xd8]: SubCode[8]".

Thanks sarami, I still think our wiki guide should be linked but that's not a big deal.

A shame about the older plextors, I have several.