What is Mac OS 9.1 (bootable/all supported systems and languages)? Mac OS 9.1 Retail CD, bootable. Mac_OS_9.1.sit(379.59 MiB / 398.03 MB) / compressed w/ Stuffit 1252 / 2016-05-31 / 7aceaa8f0f95bac5dbf1e6a04da9151ed58ee1fd / / Compatibility notes Compatible with all supported systems. This version tested (booted and installed) on a PowerMac 9600. Emulating this? It should run fine under: SheepShaver |