I will be back later with some information on Background Rendering. But you might work best with it disabled. See Edit Menu/Preferences/General.
The burn time depends on your computer resources as well as the complexity of the project. More on that later. Have you optimized your computer, defragment, et al.?
Along the top of your timeline, you'll notice a red line appearing as you add clips or apply effects or transitions. This is an indication that your video needs to be rendered, or turned into standard video. (If all of the clips you add to the timeline have a red line above them, it's an indication you are using the wrong type of video or the wrong project settings.)
In the past, you had to render manually, by pressing the Enter key. (The red lines then turn green.) But, in version 8, the program does this automatically, in the background, as you work.
Some people have found this background rendering intrusive. Particularly on slower machines, it can slow or interrupt your editing work. If it is for you, you can turn it off, as Tony indicated above.
Thanks so much for the info. I will implement it immediately.
It occurred to me that perhaps the reason for such a long burn on the
Blue-Ray disc is that I imported a rendered video from Vegas Movie Studio
Platinum 9 that I rendered in MPEG .m2t. before importing to Premiere 8.
I appreciate your advice and time!
Thanks so much for the enlightenment - so helpful! I am importing from a
Canon HV20 and burning Blu-Ray discs.