Editing captured video delays

Ormond Williams · Post by **Ormond Williams** » Thu Sep 11, 2008 10:40 pm

Editing video captured from a DVD. The video was supposedly captured in widescreen HD originally.
Using VS11.5 and now the trial version of X2, I find editing video in the main window is extremely slow to the point where it's virtually impossible. It's impossible to scrub along the timeline slider as it takes several seconds for anything to happen after any click on the timeline.

However when using the multi-trim window the delays do not happen.

Other videos in avi format are able to be scrubbed along the timeline in the main edit window without any delay.

Is there anything I can do to be able to use the main edit window without the long delays with this type of video?

Thanks!

randazzo · Post by **randazzo** » Thu Sep 11, 2008 10:44 pm

Looks like your pc hasn't got enough power to handle HD files. You could try to use the proxy function. That makes handling a lot quicker.

Ormond Williams · Post by **Ormond Williams** » Thu Sep 11, 2008 10:49 pm

Jean-Pierre,
The system I am using isn't too shabby:
OP system: Vista Business
Motherboard: ACPIx86
Graphics card: NVIDIA GeForce 8400M GS
Ram: 4096 MB
Processor: Intel Core2 Duo T7700 @2.4GHz
Hard drive: Samsung HM250JI ATA

I would have thought that with this processor, video card and ram, there shouldn't have been so much of a problem. Perhaps I'm mistaken?

I have tried it with proxy, both enabled and disabled.

I would like some other opinions, please?

Post by **Ken Berry** » Thu Sep 11, 2008 10:51 pm

It really depends on exactly which HD format was on the DVD. Was it a video DVD, or just an archive disc with HD files on it in their original format? If it is AVCHD mpeg-4, then I would have thought your Core 2 Duo should be able to handle it, albeit slowly. So give us a bit more information -- right click on one of the captured files and copy all its Properties here please.

Ormond Williams · Post by **Ormond Williams** » Thu Sep 11, 2008 10:57 pm

Thanks Ken:

I forgot to say that it was a video DVD.

Post by **Ken Berry** » Thu Sep 11, 2008 11:04 pm

Then I am not sure how you captured from the DVD. If it was indeed a video DVD, then it could ONLY (by international standard) use SD mpeg-2. And you simply use the Insert DVD/DVD-VR command in VS to import from it.

If it was originally high definition video used on the disc, it would have to have been down-converted to mpeg-2, and again you use the above command.

If it was by change a standard DVD but had AVCHD HD video burned to it as a hybrid disc, then you use the same command and in VS11.5+ (and I guess, X2) you will see it also has 'or AVCHD' on the command line...

If it were a data DVD, then the video could have been anything, and you 'capture' from it by dragging and dropping to your hard drive.

But I am at a loss to know, on the information you provided, how you got it as SD AVI using the ffdshow codec...

Ormond Williams · Post by **Ormond Williams** » Thu Sep 11, 2008 11:17 pm

Ken,
I don't have much technical know-how on this stuff. I know that codecs exist, but have no knowledge of what they do or how they work or which one is best, worst or whatever.
I just used the "Import from DVD" function in VS11.5 to capture the video from the DVD.

As I am in Australia, I use the PAL system and the DVD video is NTSC, would this have anything to do with this issue.
If I am unable to do anything about this problem I will just have to learn to cope with the multi-trim window. I am an MSPro8 user and am used to using the main window for editing (on another computer). MSPro8 does not render this video into mpeg2 format very well so that's why I am using VS.

Post by **Ken Berry** » Thu Sep 11, 2008 11:55 pm

But if the DVD is indeed a video DVD, and has -- if you look at it -- a tree structure full of .VOB, BUP and IFO files on it, then the VOB files are what you are importing. And they are mpeg-2 files with another extension. The Insert DVD/DVD-VR command in effect changes the .vob extension to .mpg (plus one or two other things) but that is that. They should appear in your VS library window or timeline as files with mpeg-2 properties. They can't suddenly be converted to AVI using a codec which does not come with either Windows or Video Studio.

So I can only wonder about your exact workflow. Can you give us a blow by blow description of what you do from when you first put the DVD in your computer's drive...?

Ormond Williams · Post by **Ormond Williams** » Fri Sep 12, 2008 12:21 am

Thanks Ken,
I don't have the DVD here at work, so will have to do the procedure again at home and get back to you. I did the capture a couple of weeks ago and can't remember the exact details of the workflow.

I wonder whether copying the VOB files and renaming them to mpg might work? I have done that before with MSPro and have had mixed results.

Post by **Ken Berry** » Fri Sep 12, 2008 1:29 am

It certainly should work that way -- and we recommend that as a fall-back anyway in case the Insert DVD command does not work. The only downside is the fact that you might get some strange effects with sub-titles or other language tracks if those are embedded (though VS cannot, of course, import from a copyright protected disc).

randazzo · Post by **randazzo** » Fri Sep 12, 2008 5:39 am

You are right Ormond. Your system is powerfull enough and should handle these files flawlessly. As Ken mentioned it's strange that the resulting file ends up as an avi file and not mpeg2.

Ormond Williams · Post by **Ormond Williams** » Fri Sep 12, 2008 9:29 pm

Ken,
I tried copying the VOB files to my hard drive, renamed them as .mpg and was able to scrub and edit them in the timeline perfectly. This is obviously the most efficient way!

Thanks for your help!