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afterdawn.com > forums > dvd±r discussion > dvd±r for newbies > i,p and b-frames
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I,P and B-Frames
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randykirk
Junior Member
_ 		24. February 2006 @ 16:06 _ Link to this message    Send private message to this user   
I am using CloneDVD2 and love it. My questions is what are the I-Frames P-Frames and B-Frames?
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Thank you
Randy K
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randykirk
Junior Member
_ 		26. February 2006 @ 07:40 _ Link to this message    Send private message to this user   
Can anyone answer this one for me?
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Thank you
Randy K
randykirk
Junior Member
_ 		4. March 2006 @ 12:26 _ Link to this message    Send private message to this user   
Still no one on this?
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Thank you
Randy K
moonrocks
Member
_ 		4. March 2006 @ 14:50 _ Link to this message    Send private message to this user   
Well, I don't know a lot about this, so I'm sure someone could give a much better explanation. But, in an mpeg video, not all video frames are equal.

The I frames are like key frames, containing lots of video info. The P and B frames are compressed frames and only contain video info that is different from frames that came before or after.

The more I frames, then the better the quality. But it's a tradeoff between quality and compression. In high action scenes you'd need more I frames, but since they contain much more info your bitrate goes way up. So overall you've got to strike a balance. And that's about the sum total of what I know about frames:)
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"Det blåser også her." - Erik den røde
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club42
Member
_ 		5. March 2006 @ 07:17 _ Link to this message    Send private message to this user   
Thats acually pretty close explanation moonrock
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