Ver.9.1.1.1 hanged when preference change

[gphidenori]

(Mac ver.9.1.1.1 with Mavericks Japanese/Macbook pro Mid 2010 17inch)

When I change preference, ver9.1.1.1 hanged.
I think some preference control system has problem.
(100% hang when I change "Max blank capacity set for DVD/BD-+R,RW)
(Maybe hang when I change preference "Needs DVDfab reopen" and select reopen dialog "yes")