Mac OS 9: Audio CD Skipping

Symptom

When playing audio CDs, the audio will momentarily skip while using the computer.

Affected Products

• QuickTime 4.1 and a Macintosh computer with built-in USB
• Mac OS 9.0.2 and a Macintosh computer with built-in USB
• Mac OS 9.0.3 and a Macintosh computer with built-in USB
• Mac OS 9.04 and a Macintosh computer with built-in USB

All of these products contain a new version of the Sound Manager (v 3.6.4) and support digital audio CD playback.

The new Sound Manager was changed to reduce audio latency in games and DVD software. This enhancement can lead to occasional skipping of digital CD audio playback when Virtual Memory is on and a virtual memory page fault occurs (virtual memory page faults occur when physical memory is low).

Solution

Install the Multimedia Update 1.0. The Multimedia Update 1.0 is available on Apple software update sites.

This article can help you locate the software update mentioned here:

• Article 14724: "Where To Find Apple Software Updates" - Lists online services for free Apple software updates.