Chapters

[frodawgg]

Howdy! If this is the wrong section of the forum, I apologize--just let me know.

I've been using imgburn for years for my BDs and have never had this problem.

I burned two movie titles (folders) to a BD for the first time (I had only done single-title discs before this), and the chapters are not working for either movie. I'm sure the chapters are part of the files because I had previously burned one by itself and was able to use them.

Does anyone know why this may be?

Thanks!

[dbminter]

Well, this isn't much to go on.  You haven't said what created your BD.  Is this a Blu-Ray Video BD?  If so, something created the BDMV, which may not have made it correctly.

 

Are you playing MP4 or some other video container file type burned to BD-R in your player?  If so, does the container file itself actually have chapter marks in it?

[frodawgg]

Sorry. 

Yeah, it's a Blu-ray video BD-R.

It was created with tsmuxer.  The original file is an mp4 (or mp2...I'll have to check), but once muxed, it's a m2ts, and I've included chapters in that muxing.  It's the same way I've always created them; the only difference is that I'm trying to burn two folders onto the disc instead of the usual one, so I didn't know if that had something to do with it.

I know that doesn't sound technical, but that's about my extent 🤣

[dbminter]

Well, those 2 folders are probably CERTIFICATE and BDMV.  Regardless of which folder you added, that should not make a different as to why the resulting file wouldn't have chapters.

 

I don't know much about M2TS.  I would just make sure the input MP4/2 had chapter breaks to begin with.  If they didn't, then I'd make sure TSMuxer had them listed in it.  If all that was okay, then TSMuxer is apparently not adding in the chapters.  Or whatever you're playing it back with, if it's PC software, isn't recognizing the chapter breaks.

 

I'm more familiar with DVD and I know on DVD Video, there are VOB files, which are the video and audio containers, but they're raw files.  Chapters are only added when you play the corresponding .IFO files related to the VOB's.  So, maybe there's a similar structure with M2TS.  Playing an M2TS file natively may not have chapters associated with it.

[frodawgg]

Yeah, I'll double-check to make sure the chapters are included.  I'm just perplexed, because this hasn't been an issue before...

[blask]

Sometimes tsmuxer doesn't create all the folders needed for Blu ray video format and this may lead to problems.

Sometimes you have to create the missing folders manually (and leave them empty)

 

This is the folder structure you need in order to have a fully functional BD-video disc:

Also check if there is a .clpi file in CLIPINF folder, I believe it's needed for chapters to work.

Edited 2 hours ago by blask

[dbminter]

You only need 2 folders for a fully functioning Blu-Ray Video disc: BDMV and CERTIFICATE.  And it may even be possible to get by without a CERTIFICATE, but I'm not sure.  My Robocop Unrated Director's Cut Blu-Ray only has those 2 folders.

[blask]

Most hardware stand-alone players need the exact folder structure, otherwise the disc doesn't work properly.

I guess software players (PC programs) are more relaxed in that regard.

 

 

Also by saying

14 hours ago, frodawgg said:

the only difference is that I'm trying to burn two folders onto the disc instead of the usual one

do you mean two BDMV folders? If that's the case that might be the problem too.

Edited 2 hours ago by blask

[frodawgg]

2 hours ago, blask said:

 

do you mean two BDMV folders? If that's the case that might be the problem too.

Two complete and separate project/title folders (each with its own BDMV and Certificate folders).  My first assumption was this was the issue, as it's literally the only thing I did differently 🤣

I will double-check for the .clpi file, though.

Thanks!