I've dealt with a lot of optical media, so you actually raised more questions than the one you put out there. First, does the disc play in the camcorder? If not, you probably screwed up the disc. Also, I've also heard that some DVD camcorders need to be plugged into the wall charger to finalize. It won't work on the battery. Second, how old is your DVD player? Older models won't play all formats of DVD recordable discs. Third, what formats will your computer DVD player accept? Same problem as the DVD player. DVD+R, DVD-R, DVD+RW, DVD-RW all make a difference, so you may have a combination where the DVD you make in your camcorder is just not compatible with the players you tried.

Sorry for hijacking the thread with some helpful advice :P
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