Stutter Stop - dvd playback

Dan203

Senior Developer
Staff member
Try authoring to a folder and then playing in VLC. Does it have the same issue? This will tell us if it's an authoring issue or a burning issue.

If it does have the same issue try forcing a recode on the audio during authoring and see if that makes any difference. That will tell us if it's the audio or the video causing the issue.
 
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halfpipe

New member
The dvd authored to a folder exibits the same stutter stop as the physical disc so that rules out a burning issue
I then authored the same files to another folder this time recoding the audio to Layer2 128bit and stutter stop so what next?

I have also Tools/Options/StartUp-Settings-Clear
 

Dan203

Senior Developer
Staff member
So it's the video. OK try authoring again but this time lets manually set the video birate lower. Whatever the automatic setting says go into the Output Options section and set it to 1/2 that value. Lets see if that has any effect.

Another thing... I think we had another user who was having an issue like this but it only happened when he used two pass encoding. Are you using two pass? If so try with it disabled and see if that has any effect.
 

Danr

Administrator
Staff member
@halfpipe, I may have found the source of the problem. Can you try re-authoring one of your discs but change the audio properties to recode the audio to MPEG1 Layer 2 @ 256 Kbps? This worked for me here on one of your short samples.

Update: Keeping the PCM audio, I lowered the bit rate from the default to 8.0 and that seemed to work too. Probably could have pushed it up to 8.5, but wanted to give myself a little margin.

Can you confirm either of these results with your own full DVD?
 
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halfpipe

New member
vreBit.jpg

Following Dan203's suggestion, I deselected "No Change" as the video bitrate and did select 9.5 (I don't have an option of 8.0) and that seemed to have done the trick. I'm halfway thru a dvd which is doing everything properly.
Yesterday Dan203 suggested similar audio changes which didn't have the desired result.
Given that the source files had 28m as the bitrate, "No Change" would produce payload a tad heavy for dvd lol
 

halfpipe

New member
Just looked at a previous vob using "no change" bitrate

mediainfo.jpg

so i'm going to keep an eye on the bitrate meter from now on
 

phd

Super Moderator
Following Dan203's suggestion, I deselected "No Change" as the video bitrate and did select 9.5 (I don't have an option of 8.0)
Just a FYI. You can directly enter numbers into the box. You don't have to use only the presets.
 

Dan203

Senior Developer
Staff member
When you leave it no change it should automaticallly lower the bitrate to DVD spec, it should never be 36.6Mbps. When you have it at no change what do you see in the Output Options for the bitrate?
 

halfpipe

New member
source.jpg

as you can see in this dialogue the dvd bitrate is correct however media info reported otherwise on the processed vob from the dvd
 

Danr

Administrator
Staff member
MediaInfo doesn't give reliable bit rate values when working with VOB files especially those that have multiple titles. The important value is in the VideoReDo output complete dialog, a copy of which is your log file. This shows the actual video bit rate of the output file as measured by by counting bytes as we output.

As I mentioned earlier the problem is that the 9.5+ Mbps is too high when you have PCM audio. We need to correct our target bit rate when using PCM audio. In the meantime, manually lower the bit rate or change the audio to MPEG1 Layer 2.
 

halfpipe

New member
will do and I like the way you push the bitrate envelope to maximize visual quality whereas lesser programs would cut the bitrate way back to "be safe"
so until dvd is well and truly behind us, it is important to strive for max quality especially since folks play the damn things on 60" screens lol
thanks for the attention
 
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halfpipe

New member
This is really starting to suck
Having an effect on my business as well
Now the stutter starts in the final vob and does not freeze the play but produces an effect similar to a low quality live stream which is short of bandwidth.
I just authored 3 dvds of 3 University convocations which I shot over the weekend and having learned the hard way, now play them through on a hardware dvd player just to be sure.
This stutter problem hides and learns like a virus. Popping up in the final vob?
at wits end Now I have to chuck hours and hours of work and start again
 

bdg2

Member
This is really starting to suck
Having an effect on my business as well
Now the stutter starts in the final vob and does not freeze the play but produces an effect similar to a low quality live stream which is short of bandwidth.
I just authored 3 dvds of 3 University convocations which I shot over the weekend and having learned the hard way, now play them through on a hardware dvd player just to be sure.
This stutter problem hides and learns like a virus. Popping up in the final vob?
at wits end Now I have to chuck hours and hours of work and start again
Are you sure that you're not just writing the DVDs to fast?
Try reducing the write speed to 8x if you have it higher at the moment.
 

halfpipe

New member
Long ago reduced burn rates to 8x and in my dvd duplicators 4x
I left the audio unchanged as it was ac3 but did chane the video to 9.57 Mbps
I'll try again now that I've calmed down this time video 8.0 Mps and audio Mpeg Layer 2
 

Dan203

Senior Developer
Staff member
This is a bitrate issue. There was a problem with our bitrate calculation. It'll be fixed in the next release.
 

halfpipe

New member
5.0.3.709e
Here's a new twist. vrd is just putting a fraction of the source files on the dvd
100% of the 1st chapter
Less than 100% of the second chapter
5% of the 3rd chapter
5% of the 4th and final chapter
 

phd

Super Moderator
Does the DVD folder on your hard drive play OK?

Is this occurring with all files, some files, one file?

Are you using the same source files as previously? What is the source of your video files? What capture device do you use?

Which encoder are you using? Single or double pass?

Send us your log file also.
 
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