Abuot I-frames and B-frames

wk wrote on 1/17/2002, 12:58 PM

I know the definition of these frames, but how will they affect the quality of a PAL VCD if changed in render settings? I mean, what setting willl give me best quality.

Will increasing I-frames improve quality?

Comments

SonySDB wrote on 1/18/2002, 1:04 PM

Increasing the frequency of I-frames will not improve quality. B-frames take advantage of the information in future and previous frames thereby requiring less bits to store information about the frame. So, B-frames compress better than I-frames. Since the bitrate is limited, increasing the frequency of I-frames will mean the quality will need to be decreased to accommodate for more I-frames.