Apple DVD Player 2.7: "Apple DVD Player cannot find software it needs" Alert

ATI Resource Manager 2.7.3 must be installed for Apple DVD Player 2.7 to work.
Symptom

When you open Apple DVD Player, an alert box with this message appears:
Figure 1 Apple DVD Player 2.7 alert box

Reinstalling the Apple DVD Player software does not resolve the issue.

Solution

Reinstall ATI Resource Manager 2.7.3 byNote: The ATI Resource Manager must be present in the Extensions Folder for the Mac OS 9.1 Installer to update it.

Related documents

Document 120022: "Apple DVD Player 2.7 Document and Software"
Document 75103: "Mac OS 9.1: Software and Before You Install Document"
Published Date: Oct 7, 2016