AAIP (Arbitrary Attribute Interchange Protocol) is a (proposed?) SUSP-based extension to ISO 9660 format, developed in association with the Libburnia software. The goal is to support arbitrary named attributes, and ACLs.
AAIP uses "
AL" as its SUSP entry signature. (Early versions proposed "
AA", risking a conflict with Apple ISO 9660 extensions.)
It is related to the format of the Rock Ridge "SL" (symbolic link) entry.
SUSP "ER" identifiers are "
AAIP_0200" and "