Having got the PS3 2 days ago AUS 1.50 FW im now looking into trying some blueray backup. The only update available here is 1.60 (currently avoiding like the plague) I've read in various posts that the dump command doesn't work above 1.54? What is the minimum firmware for backup and what firmware does it stop working on? Any help would be great as don't want to go to high as this is my on blueray source.