How do i know which decoding rates to use?

[Henk99]

Hi all,

I once heard that about 1 hour of of captured video can be placed on one 700MB cd-r by converting it to MPEG-2.

Can anyone point me to settings i need to use to obtain this rate. Everytime is use TMPGEnc to convert an AVI to MPEG-2, i end up with files that are much larger than 1 hour=700MB.

I would like to have information on what settings to use in TMPGEnc to get these results. With this i mean CBR or VBR and what rates mostly.

Henk99

[mats.hogberg]

Only thing that determines what movie duration you can cram into a given space (= file size) is the bit rate. For CBR this is the bit rate period. For VBR it's the average bit rate.
To get 1 hr of video on 700 MB, you have about 1500 kbps video at your disposal, together with 128 kbps audio.
If you however encode to (S)VCD compliant mpeg, you can author as (S)VCD, giving you almost 800 MB space on a 80 min CD-R, allowing for nearly 1600 kbps video with 224 kbps audio.

/Mats