This installs the 68K version of the RealAudio Player, however, this computer is a Power Macintosh. Please download the Power Macintosh version of the RealAudio Player from http://www.realaudio.com. This installs the PowerPC version of the RealAudio Player, however, this computer is a 68K Macintosh. Please download the 68K version of the RealAudio Player from http://www.realaudio.com. RealAudio requires 16-bit sound. Please install Sound Manager 3.0 RealAudio requires either QuickTime 1.0 or System 7.1 to be installed.