"I'm using version 184.108.40.206"
Yes. It worked simply and as one would expect prior to the last two versions for me as well.
I still have last release of version 6 installed on one pc. When using it multiple instances work as expected also.
While it is probably not exactly accurate description the versions that work seem to focus on the drive being used not if there is disk in any drive. The software only concerns itself with a particular drive and when that disk is done, the software doesn't look elsewhere. When putting disk in each drive, each drive launches a version of DVD Fab that focuses on that particular drive.
Last two versions when putting in a disk DVD Fab launches. But it doesn't seem to know what drive it is suppose to be looking at.
Its not a big deal. Just that it used to work, now it doesn't. And I'm sure it will be investigated and addressed in due time.