11.10nautilususb
How does one prevent Nautilus from automatically opening a window when a USB flash drive is inserted in Oneiric?
The autoplay options appear to be missing from Nautilus' preferences, and using gconf-editor to enable 'media_autorun_never' (as suggested by this old thread: http://ubuntuforums.org/showthread.php?t=974087) appears to have no effect, even after logging out and logging back in.
This is probably a better solution (and more likely to work):
nautilus)The media player should still automount and be available from the 'Places' menu. You will still be able to use Rhythmbox to play/manage the device but you will have to open it up manually.
go to Dash Home > System Settings -> Removable Media and check "Never prompt or start programs on media insertion"
Best Answer
In System Settings -> Removable Media you have the options for that...