Before you convert your files, please know the general limits which the iPod carry.
H.264 video: up to 768 Kbps, 320x240, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC up to 128 Kbps, 48 KHz, stereo audio in .m4v, .mp4 and .mov file formats.
MPEG-4 video: up to 2500 Kbps, 480x320, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC up to 128 Kbps, 48 KHz, stereo audio in .m4v, .mp4 and .mov file formats
How to rip/convert DVD to iPod
Step 1: Download the latest version 'Wondershare iPod Video Suite' from here
Or directly download from this link
Install and run it. The latest version is 1.3.1

Click DVD to iPod Converter component to lunch the ‘DVD to iPod Ripper’
Step2. Import/Rip DVD files

1) Rip your DVD files from DVD-ROM drive by clicking “Open DVD”.
Many friends ask me how to copy movies form DVDs to pc. This process calls ‘Rip’. Additional, rip DVDs is illegal. This software helps you rip DVDs automatically. You needn’t know how to break the css protect. You will not be confused by the complicated operation of ‘DVD Decrypter’ or ‘DVD Shrink’. I really love this function.
2) Or Load .ifo files from your hard disk by clicking “Add ifo”.
3) Or right click on the blank area in the center of the main interface to import video files from your hard disk or DVD-ROM drive.
Step3. Select the content you want to convert
As usual, the longest title is the main file of the movie. You can remove the title you don't like to convert by choosing the title, right-clicking and “Check All” or “Uncheck All”.
Additional, Wondershare iPod Video Suite supports batch convert. This helps you increase efficiency. And you can select the function ‘Shut down computer when conversion is complete’, then you needn’t stand by the computer until all the tasks finished.

Click ‘Trim’ button. A window will be popped up. You can set the conversion start time or end time here.

Step5. Option setting
Click “Option” to set conversion parameter.

You can customize “Resolution”, ‘Frame rate’, ‘Format’, ‘Bit rate’, ‘Channels’, ‘Frequency’, ‘Volume’ here according to your need. Or you just use the default setting.
There is something I want to explain. As to ‘Format’ setting. There are two choice for you—‘H.264’ & ‘xVID’. If you want to know the different between this two format. You can refer this post
http://www2.dvd-ripper-copy.com/forum/viewtopic.php?t=8
‘H.264’ provides higher quality with less size. But the conversion time is longer than ‘xVID’. If you care about the video definition. ‘H.264’ would be your choice. I prefer ‘xVID’ to ‘H.264’. Because it’s difficult to distinguish the difference between ‘H.264’ and ‘xVID’ on iPod’s little screen.
Step6. Subtitle, Audio, output directory setting

DVD provides multi languages Subtitle. You can click the drop-down menu to select anyone you want. Select ‘Audio’ is the same. To 'Save as', enter the full pathname or select the path where you want to save your video files by clicking the icon in the right side.
Step7.After all the thing done, click the ‘START’ button to begin the conversion.
How to convert AVI to iPod, WMV to iPod, MPEG to iPod, RM to iPod, RMVB to iPod, ASF to iPod, MPG to iPod, DivX to iPod, XviD to iPod, DAT to iPod, MOV to iPod video
After installing the ‘Wondershare iPod Video Suite’. Click ‘Video to iPod Converter’ button to lunch it. Its interface and operation are similar to ‘DVD to iPod Ripper’.

But compare with ‘DVD to iPod Ripper’, there are two parts I want to emphasize:
1. In ‘DVD to iPod Ripper’, you click the ‘option’ icon on the top to open the option window. In ‘Video to iPod Converter’, you should right click the files and click ‘Params Setting’ to open the option windows. This function let you set different options to different tasks. For example, you set the conversion format for the first video in xVID, and you can set it for the second video in H.264. So you can import multi files at one time and set the suitable option for each task and then go away to do any other thing. It’s really good, I love it.
2. With ‘Video to iPod Converter’, you can capture any lovely pictures from the videos. Either be your cool desktop or print it. There is a small ‘camera’ icon on the right part of the interface. Click it while previewing the video; it will save the current picture of the video for you. More over you can save it in .JPG or .BMP.

Operation:
Step1. Import video files by clicking ‘Add files’ or right click the blank of the main interface to ‘Load Videos…’
Step2. Option setting. It’s the same with ‘DVD to iPod Ripper’. So I’m not repeating it. You can refer above details to manage it.
Step3. Select output directory. The default out put directory is
C:\Program Files\Wondershare\iPod Video Suite\video2ipod\Output
Step4. Go, Go, Go. Click ‘Start’ button to start the conversion.
How to update video to your ipod through iTune
Step1. Connect your iPod to PC, launch iTunes.
If you don’t have iTunes. You can download free from here:
http://www.apple.com/itunes/affiliates/download/

We recommend that you create a new list to place the file you converted.

Step2. Find the mp4 file you have converted, directly drag into the playlist you created just now.

If you have added the file to the library of the iTunes, you can drag it from library to the new playlist directly.

Step3. Update your iPod. Click ‘File’->’update your iPod’
After updating, you can see the file list on your ipod. You can change the file name showing on iPod. Please right click the file, choose "Get info", and change the info of this file at "Info". You are done and enjoy!

Well, my guide should be easy to understand, I hope you will not face any other problems during enjoying iPod with it. Actually, I want to add ‘how to copy files from iPod to PC’ to this guide, but it’s deep night now, an important meeting is waiting for me tomorrow. I will add it next time. Good night
Stop promoting your software! This thread will be locked.