Have you checked the format on your player and how old is your DVD player?
Some Players will not start automatically so you must start it if there is
no Menu. Try it in someone elses player if it works it's your player if not
you may have problems with your burning program or even the DVD-r a lot of
them are bad about 6%-10% depending on who you believe. The medical
community was up in arms about this with floppys a few years ago and now
with Disc's and the storage of data on disc in a medical device in surgery
or other usues in the medical field. so it could be a bad disc.
Jim