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Thx for the reply. I'm running MakeMKV on an existing .mkv video file (not from an optical disk). I've done that way before to exclude tracks I don't need, although on much smaller videos, and it was faster. Thanks for the suggestion. I used MKVTools and it ran in under 2 minutes (while dropping the...

I have a very large video, 91GB, and I’m striping out the non-English audio. It’s running on a 8 core Intel CPU (macOS 14) although it appears to be using only a single core. Both the source and the destination are located on a fast SSD. So far it has been running almost 17 hours with an estimated 7...