As a general rule of thumb, if MakeMKV produces an output file, then it is good. If MakeMKV encounters an error it can't recover from, the rip fails and no output file is produced.
Messages like this:
Code: Select all
The source file '/BDMV/STREAM/00003.m2ts' is corrupt or invalid at offset 6841516032, attempting to work around
mean the drive was having trouble reading data at that location. Usually it is because the disc is dirty or damaged. It might also be because the optics of the drive are dirty or because the drive is failing. It is hard to tell from just one message on one disc. The standard advice is to gently clean the disc and try again if MakeMKV didn't produce a rip.
There's a lot of empirical data to suggest that Pioneer drives deal with marginal discs better than other drives. This is why MartyMcNuts suggested the Verbatim 43888 from the 3 on your list; the innards of that unit are made by Pioneer, although it is an older design.
There are even better Pioneer drives than the Verbatim, but to get one with old firmware that'll work with MakeMKV, you have to buy them from a
seller in your region.
At a minimum, you should probably return the LG and get the Verbatim. They're roughly the same cost and the Verbatim is probably better. If you can afford one of the better Pioneers, that's the best option. No drive is perfect, but my Pioneer seems to be able to read a lot of discs that my LG drive stumbles on.
If you do this long enough, you'll end up with multiple drives.