The problem is almost definitely your media of choice. Not all home DVD players can handle both DVD+R and DVD-R formats and even fewer support DL media. In short, it's not possible to burn a DVD and expect it to work on all DVD players...you must check with each person to find out what player they have, then research what media it can handle and burn a compatible disc. It may take more time and effort than you want to invest, but it's the only way to ensure that your work will not go for not.
I videotaped a talent show on 7 mini-dvd i used dvd shrink to get all the mini-dvds on my computer and then i used Ulead Movice factory 5 to get all the little dvd-r on one double layer 8.5gb dvd and author a dvd that could play in people's home dvd player.
The issue is that some work but a lot end up not working with the dvd not wanting to load in some living room's dvd player. I was wondering what could be the issue. Some people have been calling back saying that their dvd copy won't load. Could it be the speed at which i burn them ? I am going to try to burn them at the lowest speed like 1x or something. I am loosing money because dual layer dvd are not cheap about 6$ each.