Authoring Support Update 1.1 is out via Software Update. Pieter Coolsma states: "It includes the following updates: Apple CD/DVD Driver 1.4.5, Authoring Support 1.1, FireWire Authoring Support 1.1 ...

I understand that, in a perfect world, the CD/DVD drive wouldn't have anything to do with a USB install that asks me to install a CD/DVD driver, but I wonder if it could cause any issue.

We have previously noted that disabling Apple's CD/DVD driver may prevent certain types of Mac OS stalls. A recent Apple TIL article #31023 (dated July 2 but modified July 12) acknowledges this ...