Audio/Video not in sync (imgburn)

[Dr. Science 9000]

Okay, so recently I've taken a stab at burning various DVDs for my friends/family, burning old videos I'd like to backup in case I lose my external HD or anything like that, and my problem is that when I've burned and verified the video, I play it to find the audio/video a second or two out of sync. I'm just going to list out the process I go through when burning DVDs, start to finish, in the hopes that I can get advice how to improve it.
1. Obtain video, generally in .avi format
2. Run it through Avidemux, a program that rebuilds frames and allows me to change the audio to MP3(lame) and change that from VBR to CBR if needed, in the hopes that that was the cause of the A/V being out of sync. (I guess it wasn't) Then I save the changed avi file.
3. I open that file with DVD flick, which as I understand it converts it to vob. I tell it to verify disc after burning, and if I intend to make multiple copies, make an ISO image as well.
4. After it converts it, it opens ImgBurn and burns it to disk at 8x write speed (On my Sony DVD+R single layer 1-16x 4.7GB DVD)
5. The drive pops out, and a window appears informing me to push it back in so it can verify it.

After it's done that, I view the DVD and the audio is ~1 second ahead of the video. I know it's not the .avi file that's out of sync, so I have no idea why it does this - half the time it does, and half the time it doesn't, and on occasion it's fine for a time then the video glitches and it lapses into the same problem.

For all I know there's a beautiful guide somewhere explaining everything in terms I can understand, but I couldn't find it. Any help you guys can give me would be greatly appreciated, especially if you explain it in terms I could understand.

[aedipuss]

imgburn only burns exactly what you give it, so don't even think that's the problem. try simplifying your method. either buy convertxtodvd or try using avistodvd. and just importing the original files.

[Dr. Science 9000]

Alright, I'll give ConvertXToDVD a shot - do you know if VBR vs CBR avi format matters at all in that program, or in any DVD burning software for that matter? Thanks for the suggestion

[The Mariner]

I agree.... it's not Imgburn. FAVC is a front end for a suite of freeware (including Imgburn by the way) that'll take your .avi & make a DVD. Give it a try.