my dvds are very jumpy when playing back.

Hey so im filming some friends riding their bmx bikes lately with just a jvc everio hard drive camcorder. im just getting into final cut express so i dont really know alot about it. if there is anything im doing wrong let me know what i am doing and why when i play my dvds back the frames are very slow and is very jump.
I plug my camera into the computer and it imports the video into imovie.
Then i export the video to final cut express.
I edit the video then i export using quicktime.
Then I create a menu in idvd and just drag it from the desktop to the menu and burn the dvd.
When I am watching the video on my computer in quicktime and final cut the video is really smooth and no problems. but when i watch it from the dvd it is just terrible and jumpy. any input would be a big help. thanks.