Sorry that I didn't answer sooner but I didn't receive an email that anyone had responded to my question.
As of now, I'm able to rip each of the DVDs in their entirety using DVD Decrypter or RipIt4Me. If I use RipIt4Me, I also use FixVTS but it doesn't syncronize the audio and video. I've been Googling the problem and it seems like a lot of people have the same problem.
I found the following response somewhere. I saw no difference in the syncronization when I opened the file with MediaPlayer Classic and adjusted the audio time shift, whether I set the time shift to -1000 or +1000 and down to -100,000 and up to +100,000.
Open the AVI in Media Player Classic. Right-click the screen and go Options->Filter->Audio Switcher->check the "audio time shift" box, and fill in an estimate of the amount of asynch. Hit "Apply" and test it out. Negative values are to make the audio play earlier. 1000 ms= 1 second. Resume playback. Adjust until you get it right. At that point you'll know how much the audio is out of synch and how much to set the delay in VDubMod. Then open the AVI in VDubMod, set the Video for Direct Stream Copy, go Streams->Stream List->Right-click the audio->Interleaving->Audio Skew Correction, and set the same delay as you found using MPC. OK your way out of there, go File->Save As, give it a new name, wait a minute or 2, and test it out.
I just found this suggestion but I haven't tried it yet:
If the audio is AC3, then use DelayCut to do away with the delay. If the audio is originally a second off from the video, then in DelayCut, set the delay for 1000 ms (either + or -, depending on if the audio plays before or after the video), to either cut a second from the beginning of the audio file, or to add a second of silence to the beginning of the audio file. Then mux the video with the fixed audio.
I've Googled "VirutalDub" and "VirtualDub guide" and the results were poor and of no help.
Since I want .avi files and not .mpeg files, VideoReDo Plus isn't a program that I want, but thanks for your suggestion.
When I rip the DVDs, each one has between 7 to 10 episodes on it with 4 or 5 VOB files. I want the audio/video in sync so I convert each VOB file to .avi files by itself. If an episode is split between 2 VOB files, I join those VOB files using VOBedit and IFOedit, convert them to avi's, and then split out the episode(s). It's a lot of work and very time consuming but it's the only method I've found that works.
I'm not planning on burning the episodes . . . I just want them in my pc, so converting the files to burn them isn't a concern for me.
The audio is AC3.
The video is ahead of the audio so if someone can give me a url where there are instructions to re-sync the episodes after I've converted them to .avi files, I'd appreciate it.