www.makemkv.com

I did a search and didn't find any other threads on this.

This is in regards to the blu-ray disc from the Red source.

Two 32GB Titles on the disc. I converted them both, quick spot checks didn't indicate what the differences were. Which title should be used?

Title information
Name: Mary Poppins Returns (English)
Source file name: 01600.mpls
Duration: 2:10:29
Chapters count: 16
Size: 32.3 GB
Segment count: 1
Segment map: 800
File name: Mary Poppins Returns_t00.mkv

Title information
Name: Mary Poppins Returns (English)
Source file name: 00800.m2ts
Duration: 2:10:29
Size: 32.3 GB
Segment count: 1
Segment map: 800
File name: Mary Poppins Returns_t03.mkv

Disney film rule-of-thumb:

Seg map 800 - main title, English credits

Seg map 801 - main title if present, French (?) credits

Seg map 802 - main title if present, Spanish (?) credits

801/2 MAY be swapped... never get it right from memory.

Mondrian wrote: ↑

Mon Mar 25, 2019 10:17 am

Source file name: 01600.mpls
Segment map: 800

Title information
Source file name: 00800.m2ts
Segment map: 800

Same file, same content. The fist one is the MPLS which should always be used (selects the right audio and subtitle tracks), the other one is the pure segment stream.

Not to mention, doesn't the 2nd one also "not" show any chapters in it... a hint that the first one is the correct one to use?

Only an MPLS (a metadata file which describes what should be assembled together from the different M2TS file segments) can have chapters, an M2TS file is a stream segment without chapters.