Divx5 Settings creating lots of noise.. but only certain parts

[dude051]

Alright... first up is my specs:
Encoding Anime Source (which is pretty low quality, Tenchi OVA)
heres what my script looks like:
#Plugins
LoadPlugin("LoadPluginEx.dll")
LoadPlugin("DustV5.dll")
#
#Source
mpeg2source("Tenchi-OVA-DVD01.d2v")
#
#Cropping
Crop(0,1,720,480)
#
#IVTC
Telecide(guide=1,gthresh=50,chroma=true,threshold=30)
Decimate(cycle=5)
#
#Resizing
BicubicResize(640,480,0,0.5)
#
#Convolution3D
Convolution3d(preset="animebq")
#
ConvertToYUY2
#
#Dust
PixieDust(limit=8)
#
ConvertToYV12
#
aWarpSharp(cm=1)
#
#TemporalCleaner
TemporalCleaner()
#
#2DCleanYUY2
ConvertToYUY2
_2DCleanYUY2(thresholdY=10,radiusX=2,radiusY=2)
ConvertToYV12
#
#Tweak
Tweak(bright=3)

Divx5 Settings:
2 Pass Original @ 984kbps
Psychovisual Enhancements = Strong
Pre-Processing Source = Extream
All other settings left default, no GMC

Now my question... I have cleaned the source up pretty good IMO... is there something that could creat extream noise and artifacts from the Divx settings? Is there some filters that help specificaly to Divx ( Ive used BlockBuster, NoMoSmooth, MSmooth[made wierd colors] and came to these filters to work best with the codec.) I would post this in the Avisynth forum... but im guessing that it is codec settings and probably maybe my filters.. :P. Put together this site of before-after... bads and what i guess u can call goods>
http://www.geocities.com/goku22xl/difference.html
(an old account I had laying about.. knew it would come in use sometime ~_^) My biggest fact is that it is mainly bad in the opening credits! Yes I could always just edit them out... but its also a fact-of-the-matter type thing. Plus I wonder if the same reason is affecting the small noise problems throughout the rest of my encode. You'll see once u follow the link... any help appreciated.. and sorry if this topic seems out of place for the Divx forum.. but it just seemed to fit in here.. :)

[dTb]

Maybe give it a try without using any psychovisual enhancements. With all the filtering you've done on the source I'm not sure why your using pre-processing although I doubt it's the cause of your problem.
Did you use b-frames? Some people recommend against using b-frames in anime although I don't find much of a problem with it. If you did use b-frames try without or vice versa.

Btw, I don't do a lot of anime encoding but it looks like you've done a great job on the pre-filtering :)

[manono]

Hi and welcome to the forum-

If it were I, I'd lower the resolution to 512x384 and crop away that nasty black bar on the left side, among many other things. It's the common case of too low of a bitrate for too high of a resolution.

Also, there's something very wrong with your crop line. Must have been a typo.

[dude051]

Thanks for the reply both.

dTb: ya i could try with out the psychovisual enhancements.. hadnt thought about that too much. As for the pre-processing, I was just guessing that it would help eliminate the blocks a little. Just a guess though... and as for b-frames, I havent tried yet... heard they can give some wierd results. Wouldnt hurt to try tho... and thanks for the compliment on my filtering :D .

manono: Thanks for the welcome.. and I think i'll take the advice to goto 512x384, I started at 512 but then decided to go up to 640x480 just to see what else I could squease out :P. But might have to result back to 512 rez... and yes my crop was a typo ^_^ so is my resize, im not using Bicubic cuz it seemed to make the blocks worse.. so its Bilinear. Black bar I was gonna crop out later too.. I was mainly concerned with all that darn noise and blocks...

So thanks for both ur help... I appreciate it alot.. peace out
§Dude§