Xvid Encoding With VDubMod/AutoGK

[SM26]

I'm relatively new to encoding and codecs in general, so I'll try and be as specific as I can with my question.

I've been using AutoGK for ripping and converting my dvd's. Recently I've been converting individual episodes from a DVD set. I've been using 1 Pass, 100% Target Quality, Xvid as my conversion settings. (I wanted 100% quality for editing purposes and also because file size wasn't really an issue)

Each time using either Auto Width or Fixed Width, the output resolution would be 720 by either 400 or 416. The source resolution of the dvd was 720x480. I've read up on a few other topics about this saying that is because AutoGK uses Mod16 to resize and therefore 720x480 isnt possible.

I started trying encoding within VirtualDubMod. First by importing .VOB files straight in, and cutting out what I dont need. When coverting, I used Full Compressing Mode and my Xvid Settings were Quantisizer 1 for maximum quality. The output was 720x480 but the file sizes were coming out ridiculously huge though. I'm guessing because the output file was uncompressed.

When I used AutoGK, coverting about a 1.5gb vob file (Episodes were about 40mins long), at 100% quality, the output file was about 600-800mb. Which is ultimately what I want but with a 720x480 resolution.

All that leads to my question - Is there anyway to encode with Xvid using VDUBMOD the same way AutoGK does when I'm doing 100% Target quality? So that I can get 720x480 resolution file, keep 100% quality, and also be within 600mb-900mb file size range.

Apologize if this has been asked before....

[CWR03]

Each time using either Auto Width or Fixed Width, the output resolution would be 720 by either 400 or 416. The source resolution of the dvd was 720x480. I've read up on a few other topics about this saying that is because AutoGK uses Mod16 to resize and therefore 720x480 isnt possible.
Under Hidden Options (Use Ctrl + F9) you can select to use original size, but you really don't want to. The image will not display properly. The Mod16 has nothing to do with AutoGK not using 720x480, it's because it's properly doing its job and trying to get as close as possible to the correct display AR.

There is plenty of documentation about how to use VirtualDubMod with Xvid, but to start with, setting quantizer to 1 is obviously way more than what you need. It's not "uncompressed," because that would result in a file probably in the 70-80 GB range.

[SM26]

Thanks for the reply.

I have tried using the Hidden Options for AutoGK, and you're right the output file does not have the right AR. But I dont understand how VDubMod can convert the same .VOB file and keep the source resolution and keep the correct AR.

As for encoding with Xvid manually, what quantizer setting would match the compression settings AutoGK uses when doing a 100% Quality, 1 Pass with the Xvid Codec. Basically I'm just trying to replicate AutoGK's output quality and filesize using the above settings but keep the source resolution by using VirtualDubMod.

[Avenger007]

Just wondering... if you're concerned about quality, you do know that x264 gives much better quality than Xvid esp. when using HQ settings (like MeGUI's HQ and Extra Quality profiles), right? :)

[CWR03]

I have tried using the Hidden Options for AutoGK, and you're right the output file does not have the right AR. But I dont understand how VDubMod can convert the same .VOB file and keep the source resolution and keep the correct AR.
Depending on how you plan to use the files, there may be no need to keep the source resolution - you can, but you still have to set the AR signaling.

As for encoding with Xvid manually, what quantizer setting would match the compression settings AutoGK uses when doing a 100% Quality, 1 Pass with the Xvid Codec. Basically I'm just trying to replicate AutoGK's output quality and filesize using the above settings but keep the source resolution by using VirtualDubMod.
Use a bitrate calculator and the Xvid codec settings window.