Audio Video out of sync from recovered files

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skier-hughes
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Re: Audio Video out of sync from recovered files

Post by skier-hughes »

I would have though, recovering the file, converting using IsoBuster & DVDVob2Mpg then saving the file again using X8, 3 processes would result in a lower quality file than just the one process.
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Re: Audio Video out of sync from recovered files

Post by Weeination »

I would have though, recovering the file, converting using IsoBuster & DVDVob2Mpg then saving the file again using X8, 3 processes would result in a lower quality file than just the one process.
With IsoBuster you are extracting the raw files but no re-encode is involved. I am also told that using DVDVob2Mpg does not involve a re-encode. Therefore the only process that involves a re-encode is with X8. Considering how well it maintains video quality when rendering video files using Smart Render it's hard to see any difference in quality, just like the other burn I made today from another project.
Last edited by Weeination on Wed Oct 14, 2015 6:25 pm, edited 1 time in total.
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Re: Audio Video out of sync from recovered files

Post by Weeination »

First you are best to “Create a Disc Image”, an ISO file rather than “Create a Disc”.
You can play the Iso using VLC Media Player which will also play the menu, good for testing the menu.
Once satisfied that the movie is Ok -- burn the ISO to disc using Tools – Burn from Disc Image ISO.

Using this approach will reduce the number of coasters we make.
I did that to make an earlier test burn on a DVD-RW using ImgBurn and king of regretted not making a final burn on a DVD-R after that wasted disc. I only tried that method once again (burning a disc in the Share/Output stage) thinking that I would get a "truer" burn directly from the source video files as opposed to burning from the ISO file. From what you are telling me, I guess the end result for both burns is exactly the same.
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Re: Audio Video out of sync from recovered files

Post by lata »

Hi

The ISO is a Disc Image an exact copy of the files that would be burnt to disc.
When burning a Disc from an ISO there is no re-coding, you get the same quality.
Windows can also bun ISO to disc.
On my system burning a DVD from a ISO takes approx. 6 minutes, and I can burn as many copies as I like.

I always create a disc Image first. And no change now I am burning Bluray I still create the files first, although have to use ImgBurn to burn the disc.


The end result should be the same, but you know what you are getting after creating the ISO.
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skier-hughes
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Re: Audio Video out of sync from recovered files

Post by skier-hughes »

I am also told that using DVDVob2Mpg does not involve a re-encode.

This will depend on the make up of the vob file. A vob can be just one mpg and by renaming the vob to mpg you can often have a "conversion" A VOB can also be 10/20 small mpg's and renaming to mog only gives you the first mpg file, you lose the rest. It could also be only half, third, quarter of a large mpg file and these would need to be joined back up. All of these last options would entail a certain amount of encoding and resultant quality loss.

That loss is yours to decide on whether it is acceptable.
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