http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"Also covers Convolver, MetaPhotos, KPT Actions"--Cover.
"Macintosh--System 6.0.5 or higher; Power Macs--System 7.1 or higher"--P. 4 of cover.