off to milwaukee

i'm so tired, i spent hours trying to bet iDVD to work, i wasted 3 DVD's and still couldn't get my project to play after it was burned. i don't know if its my computer that is a piece of poop or iDVD. anybody used it and have some insight? i've read tutorials, ect, and its wicked basic stuff, but whenever i burn the disc, it is not recognizable by my computer. freakin a.