I am getting these weird error codes

[manfromtheearth]

I have a collection of 5 BD discs, which I first copied to a hard drive. I can extract MKV without issues from the first and third, but with the second I get an error with weird codes in the log. I think the important parts are the weird DEBUG codes but I include all the logs just in case.

Program reads data faster than it can write to disk, consider upgrading your hard drive if you see many of these messages.
Program reads data faster than it can write to disk, consider upgrading your hard drive if you see many of these messages.
Program reads data faster than it can write to disk, consider upgrading your hard drive if you see many of these messages.
AV synchronization issues were found in file 'E:/tmp/makemkv out/t00.mkv' (title #1)
AV sync issue in stream 1,2 at 1:07:21.170 with duration of 13.533ms : encountered overlapping frame, audio skew is +13.533ms
AV sync issue in stream 1,2 at 1:07:21.184 with duration of 10.666ms : 1 frame(s) dropped to reduce audio skew to +2.866ms
AV sync issue in stream 1,2 at 2:45:11.501 with duration of 15.533ms : encountered overlapping frame, audio skew is +18.4ms
AV sync issue in stream 1,2 at 2:45:11.520 with duration of 10.666ms : 1 frame(s) dropped to reduce audio skew to +7.733ms
DEBUG: Code 107 at +j,$qy}{6LI[t,':zp\x:213133250
DEBUG: Code 0 at O{]l*x<upg.5#Kt)+A?Z:213131157
DEBUG: Code 0 at O{]l*x<upg.5#Kt)+A?Z:213131272
DEBUG: Code 5776392 at O{]l*x<upg.5#Kt)+A?Z:121261773
DEBUG: Code 0 at b'k_Gz0NVSfy&}LieHw>A:213129984
DEBUG: Code 0 at _Y+8iB|^MtysP|GFt:}V/:213137068
DEBUG: Code 1 at 3B#\%:BlUEu3k2A;:213132537
DEBUG: Code 0 at _Y+8iB|^MtysP|GFt:}V/:213137068
DEBUG: Code 0 at _Y+8iB|^MtysP|GFt:}V/:213137068
LIBMKV_TRACE: Exception: Error while reading input
Failed to save title 0 to file E:/tmp/makemkv out/t00.mkv

Maybe you know what this means?

Edit: When playing the index.bdmv on VLC and reaching that file, it plays it at the few random timestamps I have tried, although I haven't seen it thoroughly yet.

[Woodstock]

The errors about writing too fast for your drives isn't of critical importance. The ones with DEBUG in front of them usually indicate problems with reading the disk. I'd try cleaning the disk again.

[manfromtheearth]

The errors about writing too fast for your drives isn't of critical importance. The ones with DEBUG in front of them usually indicate problems with reading the disk. I'd try cleaning the disk again.

I only have a folder with the disc images, I don't have the disc anymore. I guess some file is corrupted? If so, is there any way to correct it? As far as I have tried, VLC can play the index.bdmv and at least most of the video is playable (I haven't tested it thoroughly). So theoretically, it should be possible to salvage at least most of the video. What tool should I use for that?

[Woodstock]

I cannot say what happens with disk images, rather than disks themselves. I have not tried that. That would explain the fast read causing "reads faster than it can write" errors.

Unfortunately, that does mean you're stuck with whether or not MakeMKV can read the image... It's going to come up with the same output no matter how many times you try running it. No way to get the original disks back?