Question about AV delay in SmartRipper

[cornetet]

So I'm ripping some of my favorites DVD's in SmartRipper 2.41
using the Direct Stream Copy. I always choose the English 6channel
AC3 audio with the main video file and unchecked everything else.

Anyway, during a rip a few days ago, I noticed a little box in SmartRipper
under the Output files section that shows AV delay.

Stupid me, here I was thinking the audio was synch'ed up to the
video perfectly all this time...:rolleyes:

Sometimes this value is pretty high, like 700-800 miliseconds.
Sometimes is somewhat low, like around 10-20 miliseconds.
Its always a different value on different DVD's.

I just curious why there is even any delay present?
Is high values like 700-800ms making my output really "off"?
Is this something I should/could be changing?

[Justinus]

why there is even any delay present?
I think it's because the audio stream was inserted into the movie later than the video stream, i.e. having a mute for first 8 seconds.
Is high values like 700-800ms making my output really "off"?
It depends on how you adjust the setting of audio transcoder or multiplexer, and maybe some other softwares that can correct the delay time.
Is this something I should/could be changing?
If the output movie got asyn A/V, you can try to use AC3 Delay Corrector, or to adjust delay time during transcoding or multiplexing.