the atip contains information on the disc manufacturer, the write speed, the dye type, the laser power needed to write...etc. it is not a copy protection in and of itself - it is just something that every cd-r/w disc has, and the copy protection makers integrated this into their protections, to see if the disc is a cd-r/w or not.
as regular cd-roms dont care about the writing power, they don't have the mmc commands to check for an atip. the first safedisc version to check for this is 2.40. hope that helps