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Why is the rendering of a short clip from my source file as large as the source file?
I’m trying to take 6-hour video shot from a 1980s-era VHS camcorder and incorporate it into a menu-based DVD, organized by the different events in the source file. Using a DVD-VHS drive, I burned the entire 6 hours onto a single DVD, and using MPEG Streamclip converted the VOB files into a single 4.1 GB MPEG2 file. In Vegas 6, I’ve split that MPEG2 file into events on the timeline, and added chapter markers, and am trying to render the first 1.5-hour event to a separate MPEG2 file by selecting it as a loop, and selecting “render loop region only” in the “render as” dialog box.
The problem is that while Vegas did successfully render only that 1.5-hour loop, the rendered file is 4.3 GB. That’s bigger than the 4.1GB 6-hour source file. Logically, it seems to me that if I render 1.5 hours out of a 6-hour file (i.e. 25% of the source file), the new file should be 25% the size of the source, or 1.025GB.
What could I be doing wrong? Some video spec in the rendering dialog boxes I’m missing? I can potentially work around the problem by splitting the 6-hour file in MPEG Streamclip, but that’s not very elegant, and it would still require pulling the pieces into Vegas to go chapter markers, potentially raising the same rendering setting problems.
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2 Replies
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Wow, you put 6 hrs of video on 1 DVD! That must be extremely low quality. The problem you are having is that Vegas is rendering your video at full DVD quality in which you get about 1.5hrs per DVD. Unfortunately, you recorded your VHS to DVD at 1/4 the quality so to get the same low file size you will have to go into the template properties (using the Custom button) and set the average bitrate to 1/4 of what it is now (from 6K down to about 2K).
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks. For this project, given the low quality of the original video, putting all of it on one DVD was not a big problem.
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