For me worked editing the file /home/username/.config/gmameui, adding there lines (for titles ans snaps):
dir-title=/usr/local/share/games/mame/titles dir-snapshot=/usr/local/share/games/mame/snaps You DO NOT have to put the final ";" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/662596 Title: Unable to add directories -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs