Video Plays when Creating Video File

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Arthur494

Video Plays when Creating Video File

Post by Arthur494 »

So, I've created a 1hr 47 min video according to the guidance given in this forum. I select Share & Create Video File. And the video starts playing. Very slowly.

This affects the speed and result of the process and I have an unusable video file.

Sometimes the video starts playing at 90%. But the result is the same.

It's a problem with both VS7 and VS9, but not always both with the same project.

If the video does not start playing and I get to the end of the process, I find I have a useful file for burning.

I thought I had cracked the problem. (1) make sure the cursor is outside the range of the file's timeline. (2) cut out the first frame of the project.
But neither provide a sure way to success. (3) creating a video file from the second half of the original file works, but is not much use!

PAL (25 fps)
MPEG files
24 Bits, 720 x 576, 25 fps
Upper Field First
(DVD-PAL), 4:3
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo

btw why does a so called 2 hour DVD take only 107 minutes of video? Should I use a lower data rate? I noted someone suggested 4000 kbps for files which started life on VHS.
sjj1805
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Re: Video Plays when Creating Video File

Post by sjj1805 »

Arthur494 wrote:So, I've created a 1hr 47 min video according to the guidance given in this forum. I select Share & Create Video File. And the video starts playing. Very slowly.
...................
btw why does a so called 2 hour DVD take only 107 minutes of video? Should I use a lower data rate? I noted someone suggested 4000 kbps for files which started life on VHS.
The slow playing you see is the video being rendered. If you have Smart Render turned on it only "plays" when parts of the video that need to be rendered are being processed. Any parts that have not been edited/altered will not appear to play in the preview screen and the render time will seem to speed up.

As for the next point 1 hour 47 minutes is 107 minutes!

Steve J
Arthur494

Post by Arthur494 »

Thanks. So I have been lucky to have created many files that do not require rendering. I'll persevere. btw the other 'trick' I learned was to defrag first.

Sorry, I did not make myself clear. The reason the file mentioned was 1hr 47 mins was because I found larger files exceed the 4.7GB limit when it comes to burning, despite the fact that the DVD-R is marked "120min/ 4.7GB".
Trevor Andrew

Post by Trevor Andrew »

Hi Arthur

The Bit-rate and Length of video are used to produce a file of a certain size.
We need to make a video file (mpeg2) less than 4.3Gb in order to fit to disc.

If it is to large then we have to reduce either the Length or the Bit Rate.

Have a look at these sites re Bit-Rate calculators.

http://dvd-hq.info/Calculator.html

http://www.videohelp.com/calc.htm

Hope this Helps.

Trevor
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