Bug: ADRG projection is a different name in ArcGIS 9.2 Beta compared to ArcGIS 9.2 Final
In ArcGIS 9.2 Beta, a ADRG image has a projection name of, for example, North_Pole_Azimuthal_Equidistant or South_Pole_Azimuthal_Equidistant.
In 9.2 final, the same image returns a projection name of World_Azimuthal_Equidistant.
This is a known issue.
Since World_Azimuthal_Equidistant is consistent to ArcGIS 9.1, it is the naming convention used in 9.2 Final.