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feature request for v1.17.10 (ignore read errors option)

Posted: Mon Feb 03, 2025 3:39 am
by mas1701
Hi,

instead of more "version bumps" without any further changes, how about an option to silently ignore read errors during full disc backup?

It has been often discussed that MakeMKV aborts full disk backup even if there is only a tiny error in a file that isn't even important for the disc to work.

So why not have an option to ignore these read errors? Just skip the faulty sector (replacing the content will all-zero bytes) and create a log entry like "read error in file x at offset y - writing zeros instead (file corrupted)"?

That should not be hard to do.

Thanks,

Mark
(paid license on Linux)

Re: feature request for v1.17.10

Posted: Sat Feb 08, 2025 10:04 pm
by Powerkey
+1

This capability would have been helpful for me during the James Cameron releases last year. I went through 3 copies of Aliens and one of the discs had different errors. With this capability, I might have been able to "piece together" a good backup.

Re: feature request for v1.17.10 (ignore read errors option)

Posted: Thu Mar 06, 2025 5:46 pm
by RusticJohn
Fully concur with mas1701's suggestion. If the o/s says "no", just thank it nicely and move to the next sector.
For minor scratches the resulting blip in the video would hardly be noticed, just like when played on a commercial player.

Re: feature request for v1.17.10 (ignore read errors option)

Posted: Thu Mar 06, 2025 10:03 pm
by dcoke22
A plan that the program's author has actually talked about involves using more than one copy of a disc to create one 'perfect' rip.

https://forum.makemkv.com/forum/viewtopic.php?p=119692#p119692

This seems like it would allow MakeMKV to be sorta like a Domesday Duplicator but for blu-rays instead of laser discs.

Re: feature request for v1.17.10 (ignore read errors option)

Posted: Fri Mar 07, 2025 10:49 am
by RusticJohn
Hi dcoke22
That would be great but for one big snag: most of us only own one copy of a disk. Staying legal, I would need to buy another copy - if indeed it is still available. And this would be impossible if it's a limited run DVD of, say, my child's school theatrical performance.
In my case I'm trying to rip my own blu-ray to a NAS for playing through my R_volution gadget so that I can store all the disks in a box in the man cave. It's quite frustrating when one episode of a 6-part TV series cannot be ripped because a fraction of a second of video is damaged and unreadable.

Re: feature request for v1.17.10 (ignore read errors option)

Posted: Fri Mar 07, 2025 4:02 pm
by jinx100
Many messages on this forum assure new users that their MakeMKV copy is not degraded in any way. It is an exact copy of the video and audio data on their disc. Taking from Marty McNuts, if you get errors then:

1. Your disc is dirty,
2. Your disc is faulty, or
3. Your optical drive is faulty.

I like this standard. How would you define "a small error" that would satisfy everyone?