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Part of the difference is the shorter versions start a few minutes into the feature
Not enough to explain entire difference

Auto
CellWalk
produce the results described

CellTrim
CellFull
produce results, look identical
for instance, 3 versions of the main feature, one 4 min longer with 99 chapters, the other 2 37 chapters. But appear identical in content, don't know what the time difference means

Oh yes see attached Note that other applications see everything

Never seen this before, don't know what it means. A really old DVD of "The Matrix" makemkv only retrieves what I think is the dvd index file vlc and other products can read this disc w/o problem Debug log started at Sat Mar 01 16:36:05 2025 , written by MakeMKV v1.17.9 win(x64-release) 001...

handbrake 1080p h.265 qsv preset fails on "balanced" encoding with this error: [13:40:51] sync: "Chapter 2" (2) at frame 510 time 1910658 [matroska @ 00000287d0125fc0] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 42 >= 0 avformatMux: track ...