Currently Being ModeratedOct 17, 2011 1:41 PM (in response to phase52010)
I have the same problem than you with my new Mac Book Pro. Could you solve it?
Currently Being ModeratedOct 17, 2011 3:51 PM (in response to Gus_romero)
I should have updated this a week or two back.
My problem turned out to be the MATSHITA BD-MLT UJ240AS.
It worked fine on my old PowerMac G4 when connected, mounted BD disc's etc.
Plugged into the Mac Mini running OS 10.7 and no go.
I ended up returning the drive, spending more than I really wanted and getting a OWC Mercury Pro 12x Blu-ray Pioneer BDR-205 External drive. Which worked fine. It's bigger than I wanted and doesn't run off USB power, but it does the job without any issues.
You did say what external BD drive you're using. Maybe it's the cause.