faulty mpg2 exports with DVD template

Mindmatter wrote on 4/16/2016, 3:05 AM

Hi all,

still busy with my 8mm to BD project.
With the help of the forum folks here, I've solved all the authoring issues in DVDA so far.
Now I'm running into other problems:
The original files are all 25p mp4 scans of the 8mm films.
It's a total of about 4 hours in one single export.
First issue is a messed up export ( happened twice) from V13 on the DVD template from the mpg2 list. All I changed was the bitrate t0 9 mbs to match the original bitrate. Also has some slight CC using colorfast on some of the clips.
While most clips are fine, some flicker heavily, others have strong horizontal artifacts, in one instance V13 strangely blended the last frame of an adjacent clip over almost all of the next clip.
I tried to export a short test clip with just 20 seconds before and after the clip borders bit between the 2 problematic clips , which turns out fine.

Look here:

( for some reason I can't get the img tags to make the pic appear here )

Next issue: I cannot seem to find the right export mode when I follow the suggestions on my question how to keep the original SD aspect on a bluray.
When I set the project to 1080 with a cropped center SD video, and want to export in mpg2, the export fails "the reason cannot be determined" by Vegas. Trying a Bluray template in the AVC list ( 50i ) results in a file that takes 7 hours to produce and crashes DVDA.

Final problem: Power DVD refuses to play the BDs I burned in DVDA on my PC. Error message is " a disct with an unsupported format ".

So I'm not sure how to solve this. Any help is greatly appeciated.
Thanks!

Comments

john_dennis wrote on 4/16/2016, 3:46 AM

Please post the Mediainfo for the captured source files (.MP4 from the transfers) or upload and link to a snippet of one of the files to dropbox.com or your favorite cloud storage site.

The screenshot looks like an interlacing / field order problem. We need detailed information about the source file interlace mode, Project Properties de-interlace method, field order, resample / no resample switch on the timeline. If it was simple, I wouldn't see the same symptom on my evening news broadcast. There are lots of variables.

"[I]Trying a Bluray template in the AVC list ( 50i ) results in a file that takes 7 hours to produce and crashes DVDA.[/I]"

A faster machine may be the only help for a 7 hour render. DVDA may not have crashed, it may be processing the .avc file. Unlike MPEG-2 (which goes pretty fast) .avc files can take a long time to process on input to DVDA. The process will go "Not Responding" and the disc light will burn brightly. Give it time and It will finish.

Mindmatter wrote on 4/16/2016, 3:56 AM

Thanks John. here goes:

General
Complete name : F:\8mm\Family MP4_SD.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom)
File size : 753 MiB
Duration : 12mn 58s
Overall bit rate mode : Variable
Overall bit rate : 8 111 Kbps
Encoded date : UTC 2016-03-11 09:36:40
Tagged date : UTC 2016-03-11 09:36:40

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 12mn 58s
Bit rate mode : Variable
Bit rate : 7 982 Kbps
Maximum bit rate : 10 000 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.770
Stream size : 741 MiB (98%)
Language : English
Encoded date : UTC 2016-03-11 09:36:40
Tagged date : UTC 2016-03-11 09:36:40
Color range : Limited
Color primaries : BT.601 PAL
Transfer characteristics : BT.470 System B, BT.470 System G
Matrix coefficients : BT.601

john_dennis wrote on 4/16/2016, 4:00 AM

Looks like your captures are progressive. Have you considered making a 1920x1080-24p Blu-ray?

Mindmatter wrote on 4/16/2016, 4:02 AM

yes they are. I thought about that but wasn't sure it was the right way to go. I'll give it a try.
should I use the normal 24p bluray template and leave it at 23.97p, as it's a 25p original file?

john_dennis wrote on 4/16/2016, 4:09 AM

Do a 25p to 24p conversion. Search the forum for "how-to". The Blu-ray consortium decided to just go with 24p. There is no 25p spec.

musicvid10 wrote on 4/16/2016, 5:55 AM

Maximum bitrate is too high for DVD.. Need to cap it at 9,500,000.

Former user wrote on 4/16/2016, 8:18 AM

Okay, i am thoroughly confused, are yoiu trying to make a DVD or a Bluray? If you are making a bluray (High definition) use Bluray templates, if you are making a DVD (on DVD media) use DVD templates. It sounds like you are using DVD templates but making a Bluray.

OldSmoke wrote on 4/16/2016, 8:41 AM

Look here:

Delete the "s" from https to make it http and it should work just fine.

Mindmatter wrote on 4/16/2016, 9:14 AM

Donald, I'm making a BD. But as the source material is SD, I first rendered the mpg2 file as DVD, which works fine imported as such in DVDA to make a BD. The interlace issues are the problem right now, I'm currently exporting the 25p source material via the mpg bluray template "24p" .
I found some old threads about the timeline slowdown conversion trick, I'm gonna do that and disable resample and see how it goes. Thing is, I'll have to make the 40 clips into one long file - meaning an intermediate export? How do you guys handle that?
Old smoke - thanks- but still no luck it seems...

Former user wrote on 4/16/2016, 10:04 AM

Okay, are you using the MPG2 DVD files for something or just testing?

As I understand, you originally wanted to resize the SD material so it would be the correct size when played on an HD TV. There is no reason to make a DVD formatted file if you are creating a Bluray. Insert your SD material on your HD timeline at the correct size and render to an HD Bluray format. It sounds to me like you are making this more complicated than it needs to be.

flyingski wrote on 4/16/2016, 10:44 AM

Is your intent to make a Blu-ray to NTSC standards or PAL?

Mindmatter wrote on 4/16/2016, 10:54 AM

Donald, at first I exported DVD because I didn't know better. It worked, except for the weird blending and artifacts I described, which I suspect are a V13 problem.
My source metarial being 25p, helpful folks here then suggested a 24p bluray template, which I am currently trrying. But it's not quite as uncomplicated as you say, because I need to convert it to 24 on the timeline first to avoid ghosting and other issues. ( I did indeed see ghosting in the first try to simply render the 25p to 24p bluray without converting it first )
I'll also do a correct sized SD frame version with large black border, so people can choose what they like to see.
So I'm on it - I'll keep you posted.