Rhythmbox is checking for a CD in the drive, and on your system this blocks for a few seconds.
I wonder why it isn't using HAL for this... -- Repeated 1-3 sec lockups in Rhythmbox while accessing CD drive https://launchpad.net/bugs/55513 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
