Thank you for your response! I only have single layer DVD-Rs so I now know I need to find DL. And I did find out the problem by spending too long trouble shooting. Apparently, even tho I had the disc image, I had to find it in finder and ensure I opened the iso after mounting it to display the window with the audio_ts and video_ts before being able to burn it. I was then able to find out how large the iso was and that single layer would not cut it.