I have been making these on a DVD-R. I have been told by a store clerk that some older machines will not play it. Maybe that is the answer but don't know for sure. I am glad it played on one.
Was the one that it would not play on the oldest player? I am making some on the DVD+R right now to see if anyone needs that type.
I am glad you liked it. I do think it is a little screwy but I like it also.