I've done some more testing and this is very re-creatable on my box at least.... and it appears to be related to full-screen or multiple desktop use cases, as well as minimizing Toast. Here are all the details, does anyone know where to report bugs?
'10 Mac Pro - OS-X 10.9
LG BP40 Blu-Ray Writer (USB Attached)
BD-R Disk being burned
Toast Platinum 11.1
During burning activities progress halts 30-60 seconds after moving focus to either a full-screen mode app, or to any desktop other than the one Toast is on, or minimize Toast and stay on any desktop.
I have tested with Safari, Preview and VMWare in full screen mode, and Finder on a 2nd desktop. In all cases:
- During burning phase, the light on the drive continues to flash, but the count-down timer indicated the halt.
- During validation phase there is no count-down timer, but the light on the drive does stop blinking and the progress bar appears to not progress.
In all cases, once focus is returned to the desktop that has Toast on it, the activity resumes.