How to put and convert DVD to iPhone3.0/iPhone 3G S?
Part 1 How to convert DVD to iPhone 3.0/iPhone 3G S?Step 1 Download DVD to iPhone 3G S Converter, install and run it.
Step 2 put DVD to iPhone 3G S Converter through "ADD"
          You can either choose load DVD Folder, ISO file, IFO file, or your DVD disc.
Step 3 set the output format on "Format"
            set the output location on "Output"
Step 4 click "Start" to begin the conversion.
Tips How to improve the converted DVD movie quality for iPhone3.0/iPhone 3G S?
Click "settings" at the very end of the main interface. A window will pop up. There you are free to set the Resolution ð€“Frame rate ð€“Bit rate ð€“Encoder, etc.
Generally, higher bit rate means better video quality. But, the large file size you will get.
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Part 2 Advance editing (Optional)
After you have load DVD to iPhone 3G S Converter, you may need more editing. In this case, just go to "Edit" panel.
Video crop ð€“ You are allowed to crop the black bar, set the video zoom to 16:9 to fit the iPhone 3G S ratio.
Video trim ð€“ You can set the start time and end time to convert the particular part and put it on your iPhone 3G S.
Video effect ð€“ Make special effect through brightness, contrast, Statulation. There are also built-in effects for your reference.
Watermark ð€“ add text (your name or your website) or pictures on the video.
Part 3 How to put DVD to iPhone 3G S with iTunes
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step 1 Update to the latest iTunes, run it.
step 2 drag your converted DVD movie to iTuens library.
step 3 plugin iPhone 3G S to computer.
step 4 In iTunes, click "File -> Sync iPhone", and iTunes will import DVD movie to iPhone 3G S.
Source
DVD to iPhone 3G S Converter
http://www.hd-dvd-ripper.net/resourse/convert-dvd-to-iphone3gs.html#139