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afterdawn.com > forums > archived forums > mpeg-1 and mpeg-2 encoding (avi to dvd) > any point in encoding at a higher bitrate than the original avi?
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Any Point in Encoding at a Higher Bitrate than the Original AVI?
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Stir_Fry
Member
_ 		9. February 2006 @ 22:59 _ Link to this message    Send private message to this user   
Hi,

I have a number of Avi's to convert to DVD format, I'm trying to work out how many I can fit to a DVD-5 before the quailty starts reducing.

The original Avi's are around 1011kbps 608x336 23.97fps.

When I convert to 720x576 25fps DivxtoDVD says the average bitrate will be 1794kbps. Seems a bit low (it's about 4hrs of video!) but is there any point in the bitrate being higher than the original?

Thanks!
[ + quote]
aldaco12
AfterDawn Addict
_ 		13. February 2006 @ 03:32 _ Link to this message    Send private message to this user   
Quote:
is there any point in the bitrate being higher than the original?
It depends on the codec's capability. DVD are in MPEG-2, AVI usually use the DivX or Xvid codecs. A 700 kbps AVI file is much much better that a 700 kbps MPV file (let's ignore the audio bitrate).

Therefore: it is not sure that a 1794 kbps DVD movie used too much bitrate. It depends on the movie's type (a fast-acion movie needs a higher bitrate than a bohemian, romantic, drama)

What you can be sure of is that making MPEG-2 VBR (4000-8000 kbps, average = 6000 kbps) is much better than making a 6000 kbps CBR movie.

[ + quote]

This message has been edited since posting. Last time this message was edited on 13. February 2006 @ 03:34
afterdawn.com > forums > archived forums > mpeg-1 and mpeg-2 encoding (avi to dvd) > any point in encoding at a higher bitrate than the original avi?
 

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