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ed vandenderen
compression
on Feb 22, 2009 at 10:48:42 pm


gentlemen

I have a 2 hour project(according to the track time code) in vegas.
This would be as yet .avi format.
I hear that 2 hours of video will fit on a 4.7 g disc. Yet if I take say 590 and divide it by 120 min, I get an average BR of 4.9 megabits.
Is this not quite low and will the clarity suffer at such a low rate?

thanks


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Daniel Low
Re: compression
on Feb 22, 2009 at 11:45:37 pm

It's not low at all. I've seen major Hollywood titles drop lower than 1.8Mb/s.

FYI, transmission (TV) MPEG-2 is in the region of 2.2-2.7Mb/s at the very best, most often much lower.

It all depends on the quality of your source, the quality of your encoder and your skill.

p.s. Don't forget the audio - use AC3 rather than PCM to save space

__________________________________________________________________
Fonts are like cologne:

A bad choice speaks louder than a good one.


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ed vandenderen
Re: compression
on Feb 23, 2009 at 1:37:25 am

Dan

Would you go any lower than this to get a larger file onto a single disc? How much lower? I several large movies to compress.

I assume 2 pass vbr would help with larger files.

Well, thanks for being around on a Sunday and for the help.




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Daniel Low
Re: compression
on Feb 23, 2009 at 7:56:08 am

It really depends on the job, the client and the quality of the source, but ultimately what sort of quality are YOU prepared to drop to..

2-pass VBR is certainly the way to go.





__________________________________________________________________
Fonts are like cologne:

A bad choice speaks louder than a good one.


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