"Burn to DVD" Bug?

Steamboat wrote on 9/15/2004, 6:02 PM
Ok I have my test movie ready. It is 1 minute of AVI video.

I hit "Make Movie" and select "Burn to DVD". It goes through the process and renders the video file and the audio file.

The video file is ok but the audio file is weird. It has size (about 20 meg) but there is nothing there. When I open it in Soundforge, Soundforge recognizes that it is a pcm wave file, but there is no sound.

I just went back and rendered the audio using save to disk and it worked out ok. Anybody else see this?

Comments

bStro wrote on 9/16/2004, 7:18 AM
The video file is ok but the audio file is weird.

Are these files on your harddrive or on the DVD? What is the extention of the "audio file" that you opened? DVDs don't have separate "audio files" -- the audio is muxed with the video in VOB files, so we need to determine what files you're examining.

Rob
Steamboat wrote on 9/17/2004, 6:29 AM
The Video file is an MPEG2, the audio file is a .wav file. When you select "Burn to DVD" it creates these two files with the same name, but different extensions. My understanding is that these 2 files are compliant with DVDA and DVDA will not have to re-render.

I have had more weirdness with this. I tried doing the same test clip again and it rendered the video file ok, but it wanted 3 hours to render the audio file, for a 1 minute clip! I tried on a different clip same thing.

So I just went back and "Saved to Hard Disk" and used the DVDA template and saved the video stream to disk. Then did the audio file and saved to disk. How thing only took a couple of minutes.

It is apparent that the "Burn to DVD" on my setup is not working correctly. I will just do the "Save to Disk" and go forward, it only take a little longer. I only with I knew why I was having these problems.
mogulman wrote on 9/17/2004, 9:09 AM
I was having problems like this as well a few weeks ago. Haven't had a chance to test it recently. I changed some of my PC configuration and am hoping that it fixed it.

I did create a ticket with Sony and got answers like this, "defrag your hard drive", and "update your bios".
PaulS wrote on 9/17/2004, 8:44 PM
I have also seen this "no audio" problem two different ways. One was using "Burn to DVD". The other was when I tried to make a DVDA compliant audio file using Advanced Render. In both cases the resultant audio file properties are PCM, uncompressed, 48kHz, 16 bit, stereo.

The audio comes out OK when I render using PCM, uncompressed, 44kHz, 16 bit, stereo. Unfortunately DVDA then has to recompress the audio.

Can anyone else confirm this?
IanG wrote on 9/18/2004, 12:44 AM
>In both cases the resultant audio file properties are PCM, uncompressed, 48kHz, 16 bit, stereo.

That's what it should be.

>The audio comes out OK when I render using PCM, uncompressed, 44kHz, 16 bit, stereo. Unfortunately DVDA then has to recompress the audio.

The audio will be resampled, but not compressed. That's a problem with NTSC DVDs - the audio takes up a lot of space.

Ian G.



Ian G.
PaulS wrote on 9/18/2004, 4:49 AM
Sorry, I should have been clearer. The file properties were indeed as they should have been. My question was if other people got audio files with no sound when they used choices that result in PCM, uncompressed, 48kHz, 16 bit, stereo.
Acropolis wrote on 9/19/2004, 5:00 AM
I'm using Vegas Movie Maker 4.0 and I too have problems with audio when I try to burn to a DVD. Even though it took 7 hours to render my 26 minutes of movie the video came out good on the DVD but the audio was absent. The software prepares two file; one is the video which has an extension of .mpg and the other file is a .wav file. The wave file doesn't have any sound. Is there any one out there with a solution. I thought I could start a business doing this but now I'm face with trying to solve a problem that sony has with their program. Can anyone help?
mogulman wrote on 9/19/2004, 7:53 AM
I still haven't been able to figure out what causes this message. It seems to be very intermittent for me.

If you render your movie as "Save to Hard Disk" and pick MPEG-2. Then it always works.. The audio and video are both part of the mpeg2 file. You can still use it in DVD Architect, but I guess the format isn't optimized for Architect.
IanG wrote on 9/19/2004, 10:07 AM
>If you render your movie as "Save to Hard Disk" and pick MPEG-2. Then it always works.. The audio and video are both part of the mpeg2 file. You can still use it in DVD Architect, but I guess the format isn't optimized for Architect.

DVDA will have to demultiplex the mpeg2 first (i.e. the audio and video are split into different files) but the problem is the MP2 audio format isn't supported by the NTSC DVD standard. That doesn't mean it wont work (there's a good chance that it will!) but there are no guarantees. The cheaper the DVD player the more likely it is to work! If you're in PAL land then you're OK - MP2 is supported by the PAL DVD standard.

Ian G.


mogulman wrote on 9/20/2004, 12:01 AM
Yeah.. I'd rather do it the right way.. but it isn't working correctly...

Steamboat wrote on 9/20/2004, 9:03 AM
Well my hard disk just crashed and I have a new one on the way. I doubt this was the cause of the problem in my original post, because others have seen it to. Be interesting to see if I have it on the new hard disk.
IndyGuy wrote on 9/20/2004, 1:01 PM
I'm afraid I can't help with why there are problems being reported. However I will say that I just did my first 36 minute movie. I used advanced render to create the wav file and then the DVDA compliant template to create the video file. The time to render was about 2.5 times the length of the movie, which seems to be faster than the old MovieStudio (about 3X to render). I dropped both files into DVDA and burned a DVD with no problems or issues. Everything seems to have worked fine. I guess my point is that there would appear to be something going on here besides a "bug" in the program.
PaulS wrote on 9/20/2004, 4:08 PM
IndyGuy,

When you did the advanced render did you choose 48kHz for the audio file? Can you check the properties of the WAV file? Is it PCM, uncompressed, 48kHz, 16 bit, stereo?

Thanks,

Paul
SonyBP wrote on 9/21/2004, 11:04 AM
Within Movie Studio go to Options-->Preferences-->General and turn off the option "Close media files when not the active application". Click Ok and then try going through Burn to DVD again. That should take care of the problem, let us know if it does not. This should be fixed in a future update.

HTH,
Brian
IndyGuy wrote on 9/21/2004, 11:16 AM
PaulS,

Yes, those were the parameters I chose.
Steamboat wrote on 9/21/2004, 11:18 AM
Thanks I will try that, I just got the new HD and will be installing today. I think there is some confusion. The process worked ok when I manually created the two files. Where the problem came in was when I used the "Burn to DVD" option under "Make Movie". This caused problems, I am glad you guys found out what the problem was.

PaulS wrote on 9/21/2004, 5:32 PM
Thanks SonyBP. That solved the problem for both methods I used to create PCM 48kHz.