Okay, ive posted this before, but..i will do it agian.
First off, you need to download 2 absolutely free programs, Handbreak and iSquint. (i think handbreak is PC compatible but i am not sure about iSquint, it may just run on macs.) I squint will convert to the right size and format for the video ipod, it can do all sorts of files, so if you download movies off limewire and want to put them on limewire, this is for you...handbreak rips any DVD from your computer, and there is a website (search google for it) with all the correct settings for it...and that is how you add new iPod compaible videos