Question: Old Apple OS sounds
I remember a version of the Apple OS where there were sounds titled "SpaceBalls" "Sheet" "Transvaal" "Blue Dust" "Ghost II". There were some others as well that came out with that version of the OS. But I can't find any mention of them on the internet. Can anyone help with the OS version. Was it OS9?
iMac, macOS Sierra (10.12.6)