I own all six seasons of One Tree Hill on dvd and I was wonder I get the clips of the dvd's and onto my computer to that I can make a video. Please Please help me. Thanks

You have to rip your dvds! then you will get them on your pc, but the file type can just be opened by VLC player. So i would recomand you too convert the ripped files!
To rip your dvds you need a program called DVDS-ripper or smt, just go to www.videohelp.com and search: dvd ripper or smt;D

You either use a program to rip your dvd -> I'd recommend "next video converter" link ...but it probably takes quite some time to rip a whole season and it would be much easier (and faster) to just download the episodes you want from here :link