www.makemkv.com

There are 4 large files in the RB copy of The Rise of Skywalker Blu-Ray. The correct title seems to be:

00800.mpls

with segment map:

705,734 (the first segment is the titles/opening crawl and the second is the main movie)

01612.mpls and 01613.mpls have the opening crawl in foreign languages and 00734.m2ts is just segment 734 (i.e. the main movie,without the opening titles)

Actually, as posted in the various Star Wars topics already here on the forum, disks released by Disney almost universally use 00800 as the English title, be they purchased or rented.