Toast 9 is not behaving itself, taking about 8 hrs to burn a DVD. How do I investigate this? Mac Mini late 2009, 2.26 GHz Intel core 2 duo, 6 GB memory 1067 MHz DDR3, running 10.8.5 Mountain Lion.
If you're burning a DVD full of video (eg to use with a DVD player) and all the video needs transcoding (to TV standard SD or whatever), it will take a long time. My MacBook is significantly faster than your Mini and it still took iDVD an overnight time (I left it running, it was done in the morning) to burn a DVD I produced.
To confirm, launch Activity Monitor and expect to see Toast using 100% CPU. If you're lucky, it'll be using 200%, meaning that it's multi-threading and using both of your CPU cores. You can try quitting everything else that's running but it's unlikely to make much difference :-( .
If you're dong something else, it would help to have some details of the content going onto the DVD.
Thanks Tony, Activity Monitor shows 90% is idle. Its video of about 3.5 GB, and I'm pretty sure it used to burn this much faster. It did burn one last night as I was sleeping!
Eric Jervis 