The article includes two parts.
Part 1: Rip DVD movie to iPod (Windows)
Part 2: Convert AVI, WMV, MPEG, RM, RMVB, ASF, MOV, DivX, XviD, MPG to iPod MP4 or H264 format (Windows)
[1]How to rip DVD to iPod (Windows)
1. Download the latest version DVD to iPod Converter + iPod Movie/Video Converter Suite at dvd to ipod, ipod Video Converter, dvd to ipod suite and install it. You can download about it by referrring here.

2. Run the DVD to iPod Converter, load your DVD by clicking 'Open DVD' button or choosing 'Open DVD' from 'File' drop down menu. One or several titles appear in the list after loading DVD.

3. As usual, the longest title is the main file of the movie. You can remove the title you don't like to convert by unchecking the title. Set 'Subtitle', 'Audio Languages' to what you like.
4. To 'Output Folder', Enter the full pathname or choose the path where you want to save your video files by clicking the related button.
5. Click 'Convert' button to start the iPod DVD conversion.
6. Find the .mp4 file that DVD to iPod converter created and drag it into your iTunes library, or select 'Add File to Library' from the 'File' menu and select the encoded movies. Now you can watch it with iTunes or Quicktime Player on your PC.
Tips: Download iTunes 7+quicktime Player package from Apple - QuickTime - Download.
7. Load the MP4 files to iPod by clicking 'File -> Update iPod'. Now, you can enjoy the movies on your fifth generation video iPod anywhere and anytime.
[2]How to convert iPod video, such as 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 video using "cucusoft iPod Video Converter + DVD to iPod Suite". (Windows)
1. Download the latest version iPod Video Converter + DVD to iPod Converter Suite, and install it. For more features about it, visting here
Related download
* To convert RM/RMVB real media files to iPod, Maybe need to install Realplayer: RealPlayer - The best audio and video player - Real.com.
* To convert WMV, ASF to iPod, Maybe need to install Windows Media Player: Microsoft Windows Media — Your Digital Entertainment Resource.
2. Run iPod Video converter component. And load the video files you'd like to convert by clicking 'Open file' button.

Click 'Output' and choose the pathname where you want to save your video files. Click 'Convert' to start converting video to iPod MP4 or H264 files.
Tips: Before converting, you can click 'Advance -> Video settings' to set 'Video format', 'Resolution', 'Framerate', 'Output Quality'. If you'd like to convert video to H264 files, please set 'Video format' to 'H.264 FQ Variable Bitrate'. 'MPEG4(.mp4) FQ Variable Bitrate' is the default value. Certainly, you can also set 'Audio Bitrate', 'Channels', 'Sample Rate' and 'Volume' in 'Audio Settings' page.

As usual, we set "Resolution" as "320x240" (i.e. default settings), certainly you can also choose other video sizes you like.
3. After converting, you can open the output folder to check and play the iPod video files (.mp4 or .mov) using Quicktime Player (Freeware, Quicktime Player+iTunes downloading address Apple - QuickTime - Download .
4. Transfer the iPod videos to iTunes by draging or clicking "File -> Add File to Library". Now, you can enjoy them on iTunes. Then hit "File -> Update iPod" to sync to your iPod.
Buy Cucusoft iPod Video Converter + DVD to iPod Converter Suite
Download Cucusoft iPod Video Converter + DVD to iPod Converter Suite

Now it supports WMA, MP3, AAC, JPEG,WMV, MPEG-4, H.264 formats.

I'v tried some other softwares.This one i think is the best one.

It could help you convert any DVD/video to the format with only one step. Also it let you set the movie effects, crop/ trim video.

You can download this software free from here
dvd to ipod, ipod Video Converter, dvd to ipod suite .

You can download this software free from here
dvd to ipod, ipod Video Converter, dvd to ipod suite .

You need to convert DVDs or videos to iPod formats with a converter: dvd to ipod, ipod Video Converter, dvd to ipod suite .

Download Cucusoft DVD To iPod Converter at dvd to ipod, ipod Video Converter, dvd to ipod suite to help you.

Download Cucusoft DVD To iPod Converter at dvd to ipod, ipod Video Converter, dvd to ipod suite to help you.

i have been using wondershare converter suite for quite a long time
works great for me.

I have tried this guide, it can remove the protection.

You need to convert DVDs or videos to iPod formats with a converter: dvd to ipod, ipod Video Converter, dvd to ipod suite .