SOFTWARES: Apollo #1 DVD Ripper v7.2.6

Step Two: Run the #1 DVD Ripper
Insert DVD disc into the Drive, run #1 DVD Ripper, and you will see the main screen appears like this:
Click "load DVD from drive". Or "load DVD from a folder" button to load DVD from hard disk.
Step Three: Select The titles and chapters you want to Convert
After the first step, you will see the main interface loaded with titles and chapters like this:
Choose(click) the video clip or chapters you want to convert.
Step Four: Set a proper output file path
On the main panel, you will see output folder button. Press it, and set the output file folder. The default path is C:\movie\...
Step Five: Choose audio track and subtitle
Ouput profile:24 most commonly used quality settings are listed here. Choose the favorite one among them, and it will configure the settings automatically, including Video Quality, Audio Quality, and Audio channels.
Audio tracks: Set your audio tracks here .
Subtitles:If your DVD has subtitles, you can set the output subtitle here.
Angel: Choose the angle you want here if it is a multi-angle DVD.
Step six: How to Keep AC3 audio in final avi file.
click output profile and choose "General Avi(Used codec installed on Windows)"
Click the settings button for further settings.Dialog box appears like this:
1 DVD Ripper will choose DivX as default video codec if DivX codec is found on your system. To set 1-pass encoding DVD, click setup(1st Pass) to open a dialog box like this:
Select the Rate control mode, and choose 1-pass. Then, click OK.
Back to settings window, click Audio codec, and choose AC3 Audio Original. Then adjust Frame rate by hitting the mouse. You can adjust the screen of output movie by clicking output size(including several set sizes, original movie size and user define(set by users)).
When all set, click OK to confirm and go back to main screen.
Now all is set for ripping a DVD with ac3 audio, click start button to start ripping your DVD.

[edit]Tips

You can watch a training video of this topic at http://www.dvdtox.com/support.htm
In all events, when blockiness, or pixerlization is noticed in the output video, it is usually solved by highering the bitrate. Regardless of all other settings, the highering the bitrate will result in higher quality output.
You can rip any part of a title or chapter by hitting F2 key when select a title or chapter, A dialog will show like this:
Just edit start time and end time or drag slider bar to change the ripping point and duration.
You may gonna to crop the video to remove black bar. Click Crop settings, and you get a screen like this:
You can adjust the preview screen by draging the slider from left to right. Or you can choose No Crop if you like the screen remain the original; Crop Top if you like to crop the top blank bar; Crop Botttom if you like to crop the bottom blank bar; Crop top and Bottom if you like to crop the top and bottom blank bar. More precise opration can be done by clicking spin button.

[edit]Warnings

Understand copyright laws in your country before ripping any copyrighted DVDs.
Understand that in the US the laws are unclear and conflicting, you might be able to rip a copy of copyrighted material for your own use under the concept of Fair Use. However, circumventing DRM may be illegal in and of itself, regardless of ownership of the IP or intent after disabling the DRM method. Read up on the DMCA and then contact your congressman!