Help with Episodic DVD from xvid/divx

[Naquada]

Hopefully I'm putting this in the right forum, I'm sure you'll move it if not.

I want to put several different episodes onto one dvd. I've been looking at a few of the "how to" guides on here which have been a big help. But I have a couple of questions which I can't seem to find the answer to.

I've been using this guide,
to convert my avi's to seperate audio and video files (m2v & ac3). One of the files I want to convert is PAL, all the others are NTSC. I know I read somewhere that you can't have both on a dvd so I need to convert the PAL. Do I do this before or after converting to mpeg compliant file? Or can I do it all at once, and if so which settings in TMPGEnc need to say that source is PAL and which say output should be NTSC? Do I need to worry about audio sync?

also, a couple of the source files have different aspect ratios, as long as I use the same settings to encode each one, can I ignore that they are different.

Finally, how many should I put on a disk to get reasonable quality? I don't expect DVD quality, source files are recorded from TV, but should I be putting 4,6 or 8 43 minute episodes on a disk? What's the lowest birate most people are happy with?

If it makes any difference I will be using DVD Lab Pro to author the DVD once I'm done encoding.

[CrisCr0ss]

personally the easiest way is NeroVision Express, its a wizard that makes it so simple give it a whirl and see how it is, I used it to create Family GUy season 1 i managed to fit 4eps/dvd although i have original dvd i wanted to try transcoding avi>dvd + menu