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PROBLEMS WHEN USING THE “MainConcept MPEG-2” CODEC
I’m using Vegas 6.
I’ve created a few videos successfully in the past but now am experiencing a problem.
I noticed with my current video that when rendered to an “.MPG File” there were places
that skipped video frames.The default codec in Vegas 6 seems to be the “MainConcept MPEG-1” which I used initially.
I tried using the “MainConcept MPEG-2” codec on a small loop around the offending section
and it performed properly without skipping frames. Great I thought, I’ve found the problem.This section had lots of “Movement” including “Cross-Fades”. So heavily compressing this
with “MPEG-1” ( which is a higher compression ratio than MPEG-2 ) perhaps was too much for
it and that’s why it lost the frames.However when I tried to render the complete 30 minute video using the “MainConcept MPEG-2”
it seemed to “Stall” around the “9% Completed” mark.When I used the “MainConcept MPEG-1” on the full video the “Time Remaining Estimate” was
around 6 Hours. This would gradually count down as the “Percentage Completed” went up.
The file created successfully but with the few skipped frames mentioned.When I used the “MainConcept MPEG-2” codec on the full video the “Time Remaining Estimate”
initially was around 3 Hours. ( Half the time I suppose because there is less compression
on an MPEG-2 file and thus it takes less time to render)But after 9% was rendered the file “Stopped Growing” at around the 75 MByte mark. Strangely
the “Time Remaining Estimate” continued to tick down to zero.I have 1 GByte of RAM and at the point of the “Stall” the “Memory Available” went down to
around 80 Mbyte. I also have plenty of disk space. I don’t think these are the problem?I have the “ProCoder V 2” codec – would this correct the problem? If so, how do I run it
from within Vegas 6?Comments please.
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1 Reply
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There’s just about nothing you would use the MPEG-1 codec for these days except maximum compability between PC and Mac for video supporting powerpoint.
If finishing a project for layback to tape, you’d render to avi, DV template.
If compressing for DVD, you’d use MPEG-2, DVDA template. Then, there are some tweaks to the DVDA template…
If you’ll answer the following questions, you’ll get more specific help:
What is the nature of your source material – what was the content, what format was it shot, how was it transferred to the PC?
What format are you trying to get to? (tape, PC playback, DVD, do you have DVD-Architect or using some other tool?)Hardware/software issues on rendering – I’m not too sure. Perhaps you could give a few more details on the settings you used for the MPEG-2 render. Have you restarted your PC recently? Where is the temp directory for Vegas set to, and is there enough space on that disk? Have any large renders been completed on this setup, or is this the first?
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