# On Mac (convert DMG to ISO) hdiutil convert /dev/disk2 -format UDTO -o SnowLeopard.iso mv SnowLeopard.iso.cdr SnowLeopard.iso dd if=/dev/sr0 of=SnowLeopard_original.iso bs=2048
If you encounter such a file, verify its integrity against known build hashes (10A432) and treat it as a historical artifact, not a production OS. mac os x snow leopard 10.6 original.iso