Well you could flash your drive with that firmware but it wouldn't make it region free merely update it. As for that program, I am not familiar with it so wouldn't know where to go with it sorry.
I don't know about idle dvd. It costs $40. Not too many recommendations on that program.
Anydvd will pull off the region code,has a free trial,and usually runs the same $40.They have special promos here at AD for a $5-$10 discount about once a month.You can give that free trial a shot.
It also pulls off the ever changing sony arrcos encryption,which gives most ripping programs fits. There's a free 21 day trial.
Not sure about externals. There's a risk when it comes to updating firmware. I leave mine alone,until I run into problems.If you run into media that your drive says no disc,then a firmware update-if available-may take care of it.
