Hello all,
Thank you for having me here on the MakeMKV Support Forum. This is my first post; I am new to MakeMKV and the world of 4K UHD ripping, so please excuse me if I don't understand your responses.
For context, I emailed at the end of April, because this and another disc from the set, didn't have a hash key for MakeMKV. Now, it does have a hash key, and I've created a MakeMKV backup. But, the backup has gone all strange.
Unlike my previous backups from the set, this film ripped into many clips, of varying lengths. I found 25 clips (besides the usual copyright, menu etc ones), of the film. They range from 20 seconds long, to 30 minutes. And, there are duplicates.
I suspect one set of clips is for the Director's Cut, and one set is for the Theatrical cut, but they're all bundled together into one folder. So, I can't tell which clips belong to which film counterpart.
They're all numbered, but, even if put in ascending order, they don't seem to follow on from each other.
If this is relevant - I noticed that there are numbers in .mpls, that aren't also in video format (.m2ts), like 0800.mpls etc
My theory is this is somehow linked to why I don't have a full film-length video.
Does anyone know why this has happened? So we can avoid or fix this for others in future?
I followed this up by opening the disc in MakeMKV, ticking everything under each title, and then clicking 'Create MKV' instead. This was a success, it gave me two, intact full films.
I'd like a backup of the full films, though, incase I am missing anything by not having that. I am baffled as to why I have a bunch of clips.
Thank you for your help, and for your detective work.
Best,
S.V
Star Trek II: The Wrath of Khan 4K UHD disc from the Star Trek: The Original Motion Picture Collection (1-6) 4K UHD Set
Re: Star Trek II: The Wrath of Khan 4K UHD disc from the Star Trek: The Original Motion Picture Collection (1-6) 4K UHD
I'm not entirely sure what you mean when you say the "film ripped into many clips" but I'll explain how files are arranged on a blu-ray and UHD and that might help.
When you make a decrypted backup of a disc with MakeMKV and you examine the output you'll find a bunch of #####.m2ts files in the <movie>/BDMV/STREAM/ folder. The .m2ts files contain the audio and video you see when you play the disc and can be played on their own with a player like VLC. The #####.mpls files can be thought of as a playlist of .m2ts files. The .mpls files contain additional details, like chapters, but these details aren't necessary for the story.
Blu-rays and UHDs have a feature called seamless branching. A .mpls file can define a title as an ordered list of .m2ts files called a segment map. A player can switch from the current .m2ts file to the next .m2ts file fast enough that a person perceives it as seamless. With this, a movie can be chopped into multiple parts and, for example, both a theatrical cut and a director's cut of a movie can be on a single disc. In most cases, much of the movie is the same in both versions so the total amount of storage needed for two cuts of the same movie is only slightly more than is needed for a single cut.
If you have Expert Mode turned on in MakeMKV's preferences (on the General tab) when you highlight a title in the tree on the left you'll be able to see a bunch of details about the title in the info box on the right. You can see the .mpls that defines that title (if there is one) and the segment map defined. In lots of cases there is only a single segment that is the whole movie. In cases where there are multiple versions of the movie on a disc, the segment map will have multiple segments in the list.
When you select a title with multiple segments and have MakeMKV actually create a .mkv file, it reads all those segments in order and combines them into a single .mkv file.
Personally, I always output into a .mkv file. I prefer my rips to be in a single file, with the chapter information and to only contain the audio tracks and subtitle tracks I'm interested in.
When you make a decrypted backup of a disc with MakeMKV and you examine the output you'll find a bunch of #####.m2ts files in the <movie>/BDMV/STREAM/ folder. The .m2ts files contain the audio and video you see when you play the disc and can be played on their own with a player like VLC. The #####.mpls files can be thought of as a playlist of .m2ts files. The .mpls files contain additional details, like chapters, but these details aren't necessary for the story.
Blu-rays and UHDs have a feature called seamless branching. A .mpls file can define a title as an ordered list of .m2ts files called a segment map. A player can switch from the current .m2ts file to the next .m2ts file fast enough that a person perceives it as seamless. With this, a movie can be chopped into multiple parts and, for example, both a theatrical cut and a director's cut of a movie can be on a single disc. In most cases, much of the movie is the same in both versions so the total amount of storage needed for two cuts of the same movie is only slightly more than is needed for a single cut.
If you have Expert Mode turned on in MakeMKV's preferences (on the General tab) when you highlight a title in the tree on the left you'll be able to see a bunch of details about the title in the info box on the right. You can see the .mpls that defines that title (if there is one) and the segment map defined. In lots of cases there is only a single segment that is the whole movie. In cases where there are multiple versions of the movie on a disc, the segment map will have multiple segments in the list.
When you select a title with multiple segments and have MakeMKV actually create a .mkv file, it reads all those segments in order and combines them into a single .mkv file.
Personally, I always output into a .mkv file. I prefer my rips to be in a single file, with the chapter information and to only contain the audio tracks and subtitle tracks I'm interested in.