Compressibility, bits/pixel, and key frames....experts out there read this for me

[hjl113]

I recently did a rip and I usually do it with highest quality(1800-2000kbps)

When I did a compressibility check under gknot@5%, the bits/pixel I set was around .4. After the check the box was red and the percentage was something like 130%, which mean good quality. However, The Final divx size was a lot smaller than I calculated for.

Is raiging the bit rate the only solution so make it a larger file?

I know I did an overkill with the bit rate but I want to stay that high.

Here is the keyframe question. I did a DRF Analyzer and found out that there was too little key frames in the movie. (I saved all frames with Level 2, so DRF was 2)

I usually go for 3 CDs, what are the best setting for 2hr movie onto 3CDs(2100MB)?

I would greatly appreciate your help.

[aleksander]

if you get compressibility check of 130% it means that you will not reach your final size. It will be smaller. Go for 2 cds instead of 3 and the quality will be still amazing. You can always try raise resolution, but I guess you already have it set to very high.
So just go for 2 cds. With such a percentage you will not reach your desired file size.

aleksander

[diet]

If you realy want to use 2 cd's, you should try bicubic instead of bilinear..... if you already using bicubic, try Sharp bicubic. the quality will be better


if not... sorry:(

[tangent]

You should just encode using 1-pass constant quality of 100%.
Bitrate can never get higher than that. Not without reducing the time between keyframes anyway.