Sound cutting in and out on finished DVD

Question

Sound cutting in and out on finished DVD

Man going slightly crazy here. Any help much appreciated to say the least!

All this is using a G5 powerPC.

The story so far: I compiled a DVD using iDVD, taking 3 very short movies totalling about 20 minutes in length. All three are using the DV files created by iMovie (Share>Full Quality.)

First time burning, refused to play. Some messing about, checking out the forums here and tried taking the videos out of the Menu and using pics instead.
It then played in consumer DVD player. But with the sound cutting out in short bursts. I tried then burning it with both quality settings in iMovie, same result. I then burnt it using Disc Utility from a Disc Image.
Same glitchy sound.

When i can i am using 1x to burn.

This is all using Imation DVD-R 8x so far.

So having tried everything i could think of in iDVD i bit the bullet and got a copy of Toast Titanium 8.1
I also decided i would try different media and picked up some Verbatim DVDr

I burnt a DVD on Toast (That's a great sentence!) from the Disc Image set at 1x speed and... glitchy sound!

Interestingly i noticed Toast didn't recognise the type of audio from the iDVD file in the settings just before burning.

So, figuring it was iDVD at fault i then created a DVD using toast of the same movies and voila! No glitchy sound.

Instead, one of the movies sound is slightly out of synch. I am about to reburn it and see if it was maybe a one off error, but i have a very sinking feeling.

As i said, any help much appreciated. Thanks for taking the time to read through.

iMac G5, 2 GHz Power PC, macbook pro 17", Mac OS X (10.4.8)

Posted on Mar 21, 2007 7:32 AM

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Answer 1

Mar 22, 2007 2:55 PM in response to PastureOfMuppets

Hello, POM,
Some ideas for you:

First time burning, refused to play
You mean the burned disk would not play in a DVD player? Would it play in your computer?

using pics instead. It then played in consumer DVD player. But with the sound cutting out in short bursts.
Toast didn't recognise the type of audio from the iDVD file in the settings

What was the source of the sound when you had no video, but just still photos?
What type of audio are you using?

one of the movies sound is slightly out of synch
Could that movie clip have been recorded with a camcorder set to 12 bit instead of 16 bit?

If you go back to iMovie, is that movie out of sync as it plays? If so, you can extract the audio from the video. iMovie will lay down the audio in the audio track under the video track (seen in timeline view) and you can move the audio slightly to sync it with its video.

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Answer 2

Mar 22, 2007 7:22 PM in response to Beverly Maneatis

You mean the burned disk would not play in a DVD
player? Would it play in your computer?

Should have made that clear. It was fine on the computer, but DVD player would not have it.

Toast didn't recognise the type of audio from the
iDVD file in the settings

What was the source of the sound when you had no
video, but just still photos?
What type of audio are you using?

I switched from using video in the animated menus to using pictures, that allowed it to play in the DVD player.

Toast is claiming not to recognise the sound from the iDVD disk image. If i skip iDVD and use a basic toast menu, the movies stop having the sound cutting in and out issue but instead one of them has the sound synch issue. It all works perfectly on the computer though...

Could that movie clip have been recorded with a
camcorder set to 12 bit instead of 16 bit?

Nope, i am wise to that one. But have been tripped up by simpler things before!

If you go back to iMovie, is that movie out of sync
as it plays? If so, you can extract the audio from
the video. iMovie will lay down the audio in the
audio track under the video track (seen in timeline
view) and you can move the audio slightly to sync it
with its video.

No it's not out of synch and works perfectly in .mov form and through the computer DVD player.

Thanks for trying to help!

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Answer 3

Mar 23, 2007 2:03 AM in response to PastureOfMuppets

So, your very first burned DVD played fine when you put the disk into computer, but would not play on a DVD player. Did you try different DVD players? Sometimes there are problems with some players. Most of my DVDs play fine on both my Sony and Toshiba, but the Toshiba is not so reliable and sometimes the disks play but have sound track distortions/drops.

When you playback from your disk image, is the glitchy sound present? If so, of course it will be in the burned DVD. You cannot trust 'preview' in iDVD. You need to playback your disk image (using DVD player app) to detect any problems that may arise when the DVD is burned to disk.

It is strange that video clips on iDVD's menus would have audio problems, although sometimes a clip becomes corrupt. Sometimes it is a brand of disk, so changing to Verbatim is a good idea.

You could try deleting iDVD's preference file (Yourusername->Library->Preferences->com.apple.idvdplist. Find that plist file, trash it, reopen iDVD. A new preference file will be created.

Did you try scrapping the iDVD project and starting over with a new iDVD project? That may work when nothing else does and it is faster than you think since you have already created the project once 🙂

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