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Getting these error reports: There are three files that appear to be 35.1 GB each. I've tried all three. This is a log from just one of the three.

Using direct disc access mode
Title #00520.mpls has length of 30 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00521.mpls has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
File 00252.mpls was added as title #0
File 00253.mpls was added as title #1
File 00255.mpls was added as title #2
Title #00000.mpls has length of 30 seconds which is less than minimum title length of 120 seconds and was therefore skipped
File 00020.mpls was added as title #3
Title #00070.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00071.mpls has length of 10 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00072.mpls has length of 10 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00060.mpls has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00061.mpls has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00062.mpls has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00100.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00101.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00102.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00103.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00104.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00105.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00106.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00107.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00108.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00150.mpls has length of 30 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00151.mpls has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00050.mpls has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00051.mpls has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00052.mpls has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00081.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00080.mpls has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
File 00803.mpls was added as title #4
File 00800.mpls was added as title #5
File 00801.mpls was added as title #6
File 00802.mpls was added as title #7
Title #00011.m2ts has length of 24 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00002.m2ts has length of 30 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00001.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00003.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00075.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00076.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
File 00527.m2ts was added as title #8
Title #00082.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00502.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00503.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00504.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00505.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00506.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00004.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00508.m2ts has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00509.m2ts has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00510.m2ts has length of 8 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00512.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00513.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00514.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00515.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00516.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00517.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00518.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00519.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00520.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00524.m2ts has length of 30 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00525.m2ts has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00872.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00873.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00874.m2ts has length of 0 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00083.m2ts has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
File 00879.m2ts was added as title #9
File 00881.m2ts was added as title #10
File 00882.m2ts was added as title #11
File 00883.m2ts was added as title #12
Title #00884.m2ts has length of 7 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00885.m2ts has length of 98 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00886.m2ts has length of 61 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00887.m2ts has length of 92 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00888.m2ts has length of 103 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00889.m2ts has length of 32 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #00890.m2ts has length of 7 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title 00803.mpls is equal to title 00800.mpls and was skipped
Operation successfully completed
Saving 1 titles into directory E:/HD Movies/Oz the Great and Powerful
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565268480'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565268480'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565268480'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565268480'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565286912'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565268480'
Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565286912'
Failed to save title 6 to file E:/HD Movies/Oz the Great and Powerful/Oz_the_Great_and_Powerful_t06.mkv
0 titles saved, 1 failed

Error 'Scsi error - MEDIUM ERROR:NO SEEK COMPLETE' occurred while reading '/BDMV/STREAM/00040.m2ts' at offset '16565286912'

This says MakeMKV issued a command to seek to a position on the BD, and the drive reported back that it couldn't find it.

Possible causes include a dirty or damaged disk, a poorly mastered disk (errors pressed in at manufacturing), or bad drive. First thing to try is cleaning the disk.

In cases like this, the "files" will have considerable overlap in content. That is, the majority of the movie is on the disk only once, but certain scenes will change from version to version. If the error is only in one of those "extra" scenes, you could get one complete movie.... Or, you could get nothing, because it is in a spot that is common to all versions.