dvd pixellization

[jaydev2005]

I use VSO DivxToDVD to encode my avi's,mpegs etc to DVD format.Then I use TMPGEnc DVD Author to make menus.I burn using Nero at 4x.Playback on Home DVD Player is VERY good, apart from blocky pixellisation that happens every now and again.Seems to be when some fast action is taking place on screen.
Anyone know if i can get rid of this pixellisation?Any info will be greatly appreciated.
THANKS

[mats.hogberg]

There could be 2 reasons:
Either the source material is encoded at a too low bitrate, or your DVD mpg is encoded at a too low bitrate.
Usually, a 4.37 GB DVD should be fine for up to 2 hrs of video, over that, the bitrate might be too low for high action scenes, and display the problems you see.
However, I suspect the problem is already present in the source material, and not much for you to do about, but get better source material.
"avi's, mpegs etc" sounds like downloaded material - If that's the case, what did you expect? It is mostly crap.

/Mats

[thegeeman]

I agree with Mats comments; probably crap source material. Remember, crap in, crap out!!!
Only thing slightly possible to aid you with the material you may have is to:
1. Encode at VBR for the 'fast action' scenes;
2. Burn at slower speed,i.e 2x, to aid your laser to read better.

[jaydev2005]

Thanks for the advice guys,its much appreciated.But what is the best program for converting to a VBR before i convert to DVD?

[guns1inger]

If you want to maximise the quality you can get (and from a poor to average source, don't expect DVD quality) then you have to do it the long way. Virtualdub or avisynth to resize and sharpen the video (because the act of resizing will soften the image, regardless of method used), frameserve this to a good quality video encoder (tmpgenc, CCE, Procoder) using settings you have calculated with a bitrate calculator.

Encode your audio seperately as AC3 using ffmpeggui. Author the two files togther and see how you go.

A detailed guide can be found here http://members.dodo.com.au/~jimmalenko/AVI2DVD.htm written by one of the members here. It uses tmpgenc, but the steps are pretty universal.

[jaydev2005]

Thanks for the post guns1inger..tried it and it works beautifully,even if it does take a while to rerender its worth it..thanks again