DVD burned from img won't play in other players

In order to back up an old DVD I had to protect it from damage, I ripped it with handbrake and encoded it as a diskimage via iDVD. As the movie was 1.5 hours in length I used the professional setting under project info. After approximately 12 hours of encoding the disk image finished. I can open the disk image with DVD player on the mac and it performs perfectly. I used the disk utility to burn the disk image to a Memorex DVD+R without incident. This morning I tried the burned DVD in my xbox360 which read it as a mixed media disk and would not play it. Next I tried in my sony blu ray player which read it as a photo disk with no photos on the XMB.

What do I need to do to have the burned DVD work properly? Are the DVD+Rs bad or is it something with the encoding? Thanks in advance for your help. I am a pretty big novice to iDVD and the whole process.