who makes their own dvd's?

those of you with video/navigation hu's what program are you using to make your own dvd's? i bought nero to copy purchased dvd's for my car and it works great but even when i convert uploaded .wmv files off of my digital camera and convert them to .mpeg2 dvd compliant format i can not find a program that will authorize and burn the files to play properly.

is anyone out there making their own dvds that work in head units, if so what program are you using?

well my nero as i said does do purchased dvd's to copy. however when i try to have it burn mpeg2 files it seems as if it isn't authorizing them right. the only thing i don't get is that i can get the files to play well on my home unit and not my kenwood hu. i haven't tried my eclipse yet to compare but the burned purchased dvd's all work well on the kenwood when i copy them so why not the .wmv that were converted to mpeg2 dvd format?

you say adobe works well for you, i wonder if they have a basic trial version of their program. i don't mind buying something but i want it to do what i need it to.

thanks.

with nero just dvd, i tried svcd and vcd but that didn't seem to work. so your saying you can take .wmv downloaded files like music videos or other random things that you could upload off a camera and you are able to make them work perfectly on your head unit?

what programs are you using?