Chapter markers lost after removing audio track

I have a QT movie (of old home novies with no REAL audio) prepared for the AppleTV that was working fine with chapters. When I removed the audio track and saved the file there are no longer any chapters. When I view the 'properties' of the file I see 'something' above the video track that has the name of the file bit can not be enabled. Is there a way for me to get back the chapters or did I mess up? Thanks.

Sorry,
I was looking at the wrong line in the script. I am checking SPRM 7 for the Current segment of the title (Chapter Marker).
Also I got lost in the nomenclature in your second paragraph. It looks really helpful but I didn't understand what you meant ("Non-sequential PGCs..."). How should I get the dvd to move from track 1 to track 2 and back if I don't set the Next Jump (aside from scripting it)?
Also, where could I find the DVD Spec rules you've alluded to?
Thanks
Here is the script thats being run:
01: mov GPRM 6, SPRM 7
02: mov GRPM 7, SPRM 4
03: sub GPRM 7, 1
04: mul GRPM 7, 128
05: add GRPM 7, 49280
06: add GPRM 7, GPRM 6
07: mov GPRM 6, SPRM 8
08: Goto 13 if (GPRM 6 = 2048)
09: sub GPRM 7, 1
10: sub GPRM 7, 1 if (GPRM 7 = 49285)
11: sub GPRM 7, 1 if (GPRM 7 = 49439)
12: Jump Indirect GPRM 7
13: mov GPRM 7, 49408 if (GPRM 7 = 49313)
14: Jump Indirect GPRM 7
It calculates the valud of the current Chapter in terms of the current track, determines whether the user wanted to repeat the chapter or continue to the next chapter, tests a few special repeat/continue points (jumping back multiple chapters or continuing to the next track) and the jumps to the calculated location.
I realize that I could rewrite this and using a few prescripts and the other scripts in the project so that I don't have to calculate based of SPRM 7 but I'd rather not if it isn't necessary. It seems like the dvd player (stand alone) simply doesn't read the chapter markers. It always repeats to chapter 1 and continues to chapter 2 no matter what.

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Chapter markers lost after burn, breaking scripts.

I wrote a script to handle navigation between chapters in a training video.
It reads SPRM 4 to determine the last played chapter and does some arithmetic to calculate the next sequence in the video.
The user is presented with the option to repeat the chapter or continue to the next training sequence.
This works beautifully in the simulator and even in Apple's dvd player but the stand alone players we've tried (a Magnavox and a Sony) don't have the chapter number information. It can be displayed for other projects but for some reason, this dvd lost the chapter numbers during the burn?
Consequently the script that moves to the next chapter doesn't work because the dvd player always feeds it the first chapter number.
The project has 3 tracks. Any input would be most appreciated. I need to know if SPRM 4 just doesn't work on some DVD players.

Sorry,
I was looking at the wrong line in the script. I am checking SPRM 7 for the Current segment of the title (Chapter Marker).
Also I got lost in the nomenclature in your second paragraph. It looks really helpful but I didn't understand what you meant ("Non-sequential PGCs..."). How should I get the dvd to move from track 1 to track 2 and back if I don't set the Next Jump (aside from scripting it)?
Also, where could I find the DVD Spec rules you've alluded to?
Thanks
Here is the script thats being run:
01: mov GPRM 6, SPRM 7
02: mov GRPM 7, SPRM 4
03: sub GPRM 7, 1
04: mul GRPM 7, 128
05: add GRPM 7, 49280
06: add GPRM 7, GPRM 6
07: mov GPRM 6, SPRM 8
08: Goto 13 if (GPRM 6 = 2048)
09: sub GPRM 7, 1
10: sub GPRM 7, 1 if (GPRM 7 = 49285)
11: sub GPRM 7, 1 if (GPRM 7 = 49439)
12: Jump Indirect GPRM 7
13: mov GPRM 7, 49408 if (GPRM 7 = 49313)
14: Jump Indirect GPRM 7
It calculates the valud of the current Chapter in terms of the current track, determines whether the user wanted to repeat the chapter or continue to the next chapter, tests a few special repeat/continue points (jumping back multiple chapters or continuing to the next track) and the jumps to the calculated location.
I realize that I could rewrite this and using a few prescripts and the other scripts in the project so that I don't have to calculate based of SPRM 7 but I'd rather not if it isn't necessary. It seems like the dvd player (stand alone) simply doesn't read the chapter markers. It always repeats to chapter 1 and continues to chapter 2 no matter what.

Removing audio tracks

anyone know how to remove audio tracks when converting to apple tv format in visualhub (or ffmpeg)? i have two tracks in the input file, and would like to remove the first one.

Try Handbrake instead - let's you select audio tarcks for conversion, and likely to be more up to date than VisualHub.

Chapter markers lost from quicktime MOV in compressor

I searched on this topic and can't seem to find it specifically. Soo....
When we export from FCP through compressor to an m2v, chapter markers come through fine and appear in DVD SP just fine. However, an editor of mine exported to a quicktime MOV with the chapter markers. The file, when opened in quicktime, show the chapters there.
However. If I run the MOV through compressor using the same set ups, the chapter markers are striped from the resulting file.
I am wondering if there is something I am missing when I have to do this from an MOV with chapters.
OR
If there is some way to export or extract the chapter marker information in a way that DVD SP can import. The text track that is in Quicktime has a good deal of other information that DVD SP won't accept as a chapter marker file. Argh.
Can FCP export JUST the chapter marker text. I am obviously going to just go in and add the chapter markers to the track in DVD SP myself. But, as everyone knows doing this after compressing to M2V I will no longer be able to have those markers on the exact frame I want due to GOP.
So, I am asking this for the next time I have an MOV with chapters that I want to convert to mpeg2 and retain the markers for DVDSP.
Just so you know... yes. These markers where properly tagged as chapter markers. (obviously because quicktime shows them as such.)
Thanks guys. I know someone else has had to deal with this somewhere.

I must be losing it. I meant to post in this thread.
My chapters are clean. Pretty good at avoiding anything problematic. I even keep spaces out of my folder names because when I learned to use computers they weren't allowed. (only 128 characters too, if I remember correctly)
I have the previous versions of Final Cut Studio. The recent decline of DVD and the economy has eaten my departments budget to upgrade the OS to Leopard and to Studio 2 so FCP 5.1.4, etc.
Maybe this has been fixed in the upgrade?
My editor has upgraded. So, this would be entirely a moot issue if Apple saw fit to make their projects backwards compatible. (Don't get me started on that) I guess I will have to stay on top of my contract editors and sending me an XML so I can work in their projects. Or giving me the M2V's I ask for already rendered.
Until we can upgrade around here.
thanks for the help tho.

Is there an easy way to remove audio track from .mp4

Guys
Wondered if anybody knows of a way to take a .mp4 file with a silent audio track exported and remove that audio track altogether without having to reconvert the video in AME- just deleting the (silent) audio track
Have lots of files that need this and was looking for a way to do this without going back and reexporting all the clips the hard way
Any thoughts much appreciated-- (I have access to both Windows 7 and WIndows XP pro 64 bit)
Thanks
Tony

Thanks Jim
I figured that would work but for some reason the resulting files did not play correctly--Alternatively I used Mpegstreamclip -opened the video I wanted to erase audio track from--- clicked on "edit--delete audio track" then clicked "save as" and this finally accomplished what I was trying to do--Now have a copy of the .mp4 file wo audio
Thanks for all your help--Hope this thread helps someone in the future
Peace
Tony

Chapter Markers shift after build in Encore when using PP dynamic lnk

When I create a sequence complete with perfectly placed chapter markers in Premiere Pro CS6 and send it to Encore via the dynamic link everything appears fine (it even simulates perfectly) until I build a DVD in Encore. After the build in Encore most of the chapter markers have shifted and are no longer perfectly placed. It's as if Encore encodes the video without regard to the chapter marker information and then adds them onto the already encoded video where they have limitations on which GOP frames they can appear. Shouldn't Encore take the chapter markers into account while encoding the video? The way around this I found is to export the sequence from PP and then import the video into Encore. All is well if I do it this way but I like the advantages of dynamic link. Encore just doesn't seem to respect the chapter marker information. Am I missing something or is this just a flaw in Encore?

Good questions.
Yes my source clips codec is motion jpeg at 29.97fps.
If I just focus on the second chapter marker in my test sequence (given the automatic first chapter marker is at 0 sec.) it is at 1:01 in the timeline which is off the GOP boundary of 15 frames. When I build the timeline this marker moves 1 frame back to 1 sec., a GOP boundary. Doesn't sound like a big deal but that puts the marker into the previous clip on my time line which causes the automatic thumbnail in my menu to be wrong and there's a little flicker when you jump to this chapter on DVD playback as it plays this one odd frame.
I guess I am transcoding during the build (am I not supposed to?) but I have since tried your idea of trying "transcode now" before the build. It sounded promising. While looking at my second chapter marker in the timeline I clicked transcode now and watched the marker jump back 1 frame. Cool, but I'd rather it didn't do that.
You are right I don't need a menu to examine this. It's just that the thumbnails changing in my menu after a build were the firts indication to me that something was going wrong. Again if I import a file that's already transcoded to En this isn't an issue.
It just looks like En doesn't respect chapter marker locations through the dynamic link to Pr and it should. It rather transcodes first and then adds in the chapter markers as close as it can to their original locations. It's possible I am missing something in my workflow but it at least sounds like you understand what I am experiencing.
Can you try modifying your test by creating a couple of 1-sec clips in Pr sequence with a chapter marker between them (so your first one is at 1:01) and then see if the same thing happens to your first chapter marker?

Removing audio tracks from a clip

Hi,
I have a set of HD clips that were digitized with 8 tracks of audio. I only need the first two. Is there a way to eliminate these extra tracks BEFORE dropping them on the timeline. It's a great annoyance to have to either lock off audio layers to prevent these from going on my timeline, or having to link and unlink layers and remove them.. There has got to be a better way!!
Any ideas??
Thanks!

Locate your clip in the Finder, on the Media drive. Duplicate your clip first...to make sure you don't mess anything up irreversibly.
Open it in Quicktime. Go to the WINDOW menu and then SHOW MOVIE PROPERTIES. Notice how you have a Video track, and then 8 audio tracks, and the timecode track. Delete the audio tracks you don't want by highlighting them and pressing DELETE.
Save the file. Import that into FCP to make sure it is done right.
Shane

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I have some videos with 2 audio tracks on them (stereo and surround).
Is there any way to remove one of those tracks without converting the video?

It can be done with QuickTime Pro
<http://store.apple.com/us/product/D3380Z/A>
"Show Movie Properties" in "Window" menu, detete the unwanted track, then "Save" in "File" menu.
You may need to install Perian
<http://www.perian.org>

Chapter Markers lost in iPad transfer?

Hi,
I can make a timeline in FCPro 7 - and I name the chapter markers with a number that corresponds with, in this case, a horse hip number at a horse sale!
So I'll have a 30 minute movie edited in FCPro 7 with 10 chapter markers - all named with a number.
When I export to a SC movie - all chapter markers show up perfectly. I then run the SC movie thru Compressor - and compress for iPad. NOW, my problem begins.
When I drop the compression in iTunes and sync with my iPad (Model MB293LL) - it syncs perfectly with the iPad - and I see the Chapter Markers - but the "names" of them are lost! They're just renamed 1, 2, 3, etc and I've completely lost the number I've used to rename them???
So I "see" all the chapter markers - but their 'name' has been lost?
Interestingly, if I bring in the same movie to my iPhone - the Chapter markers show up perfectly! And hold my "name" perfectly. Is this an iPad bug?
But I could've sworn that a year or so ago, this did all work. Anyone else have this issue - that the chater marer names are lost in iPad?
Thanks,
Larry

I must be losing it. I meant to post in this thread.
My chapters are clean. Pretty good at avoiding anything problematic. I even keep spaces out of my folder names because when I learned to use computers they weren't allowed. (only 128 characters too, if I remember correctly)
I have the previous versions of Final Cut Studio. The recent decline of DVD and the economy has eaten my departments budget to upgrade the OS to Leopard and to Studio 2 so FCP 5.1.4, etc.
Maybe this has been fixed in the upgrade?
My editor has upgraded. So, this would be entirely a moot issue if Apple saw fit to make their projects backwards compatible. (Don't get me started on that) I guess I will have to stay on top of my contract editors and sending me an XML so I can work in their projects. Or giving me the M2V's I ask for already rendered.
Until we can upgrade around here.
thanks for the help tho.

How have I lost the green Audio track that used to be below the Video clips?

QUESTION!
1. Where has my Audio Track gone?
2. How can I get the Projects to stay where I put them in the Library. OK I can tell the latest to Go to the top - so why cannot I say Stay in Title order.

This forum is for mobile iMovie (iPhone & iPad).
You may need the iMovie Mac forum:
https://discussions.apple.com/community/ilife/imovie

Audio lost after removing event

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I made use of the precision editor to edit the sounds. Does anybody have a trick to remove the fragments but including fragments with overlapping sounds? I'm using movie 9.0.4.

Hi Ian, thanks for taking the time to reply.
I am using FCE 2.0.3
I have captured video and audio before without any problems.
The audio file appears in the timeline but there is nothing in it, the visuals are fine.
It plays fine in the viewer and registers on the meter but there is no audio after capture.
I do not seem to have the View menu>Video out etc, my system just shows view> video>reatime or firewire.
Thanks Mick
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Thanks for the tip, and I got it to work but here are a couple of things to clairify for others. To extract the chapter(s) info out of the movie you go to Window:Show movie properties, enable the Text Track(not called chapter track) and select only that track to Extract. A new movie is created, that just looks like a white bar with the chapter names in them, select all and copy. Then go to your compressed movie and Edit:Add to Selection & Scale.
Now the movie will not look right, to fix this: go to Window:Show movie properties, uncheck the enable button on the text track, in the "other settings" for the text track make sure "Chapters" is selected to "Text track", now go to "Visual Settings" and change the scaled size to match the width of you movie and make the height 20 pixels (320 x 20 for me) and all is well. If I enable the text track the name of the chapter markers appear in a white box at the top of the screen.
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Dual 2.7 G5/ Dual 2.0 G5 Mac OS X (10.4.6) 30" Apple Monitors, Final Cut Studio

Chapter markers lost after removing audio track

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