What I am reporting appears to be entirely reproducible on certain sets, and has only started happening in the last month or two.
I've been using MakeMKV for several years now. It has always worked fairly flawlessly for me. I have never before suspected that MakeMKV was the culprit of an unreadable disc, rather than simply damaged discs.
But in the last month or two, I've run into 3 separate sets where:
1) A disc in media that I buy on ebay proves unreadable.
2) I am either sent or purchase an identical copy of that set.
3) The replacement disc fails *in the exact same place on the disc*, which seems to me to be exceedingly unlikely.
Examples:
1) Que Pasa USA (old bilingual TV series): Both copies of Disc 2 fail at output size 3698.6M. Exactly the same spot.
2) Dark (German sci fi series), Blu Ray - both season 3 disc 2 copies I have fail the same place, near the end of the last episode.,
3) Counterpart (Starz scifi series), Blu Ray - both season 2 disc 2 copies fail at the same place, near the end of the last episode.
As I said, never experienced this until recently. Encounter it on multiple optical drives (pioneers), and on both Windows and Linux. It doesn't happen on every disc I try to rip, but pretty much anytime I encounter an error now, getting a replacement is pointless as it will fail in the same spot.
I have enough years of trouble free use of this software that I am suspecting a regression in a recent version. Any help (or just taking this report seriously) would be greatly appreciated. I was already planning on finally buying a permanent license, but any attempt to help will absolutely guarantee it.
Thanks again for this great and invaluable software.
Multiple identical copies of same discs failing in exact same spot
Re: Multiple identical copies of same discs failing in exact same spot
Now this I definitely cannot claim to be all-knowing in or even an expert, so take this as speculation.
You mentioned buying them on eBay, AND being sent replacements for the problem discs.
Are you certain they are legitimate, official discs and not bad bootlegs?
Reasoning:
If they were official releases being sold used, I would think it being much less probable you could get replacements of the exact disc you encountered errors with of multiple sets, considering most people selling their official bluray set would have only 1 of it.
That is certainly not an absolute, for example not accounting for people who buy in bulk to resell in different regions or other similar situations, so again speculation.
However, if they are bootlegs, and the person who is creating the copies is creating the flaw or has flaws in their source, then it could create an error in the same place on each disc they burn.
I would not knowingly buy bootlegs (at least not if the media is available officially) nor ever researched if/how you could determine whether a disc is official or bootleg so I cannot help you in determining if that is the issue, unless it is visibly obvious what you purchased is not official.
You mentioned buying them on eBay, AND being sent replacements for the problem discs.
Are you certain they are legitimate, official discs and not bad bootlegs?
Reasoning:
If they were official releases being sold used, I would think it being much less probable you could get replacements of the exact disc you encountered errors with of multiple sets, considering most people selling their official bluray set would have only 1 of it.
That is certainly not an absolute, for example not accounting for people who buy in bulk to resell in different regions or other similar situations, so again speculation.
However, if they are bootlegs, and the person who is creating the copies is creating the flaw or has flaws in their source, then it could create an error in the same place on each disc they burn.
I would not knowingly buy bootlegs (at least not if the media is available officially) nor ever researched if/how you could determine whether a disc is official or bootleg so I cannot help you in determining if that is the issue, unless it is visibly obvious what you purchased is not official.