Best software for converting DVD to MP4

[Chrislong]

Somebody is bound to have some good advice, I have just bought an Ipod touch and now looking into converting some DVD's to MP4 to put on it.

The best free download I found puts a watermark on the MP4. If there is a free download to use which is comlete, no trial, then what do you guys recommend?

If this isn't the case, which one would you guys recommend paying for. Id prefer to buy it over the counter than over the web, for some reason I am happier doing that with software.

Don't need it to do anything fancy, just convert DVD to MP4 including sound, and allign it to the video correctly.

Chris