CD Mounter Plus is a system extension for mounting CDs. It supports a
long list of physical CD-ROM drives, from 25 companies.

> CD Mounter Plus?
>
> [This archive] contains CD Mounter Plus? version 3.3 and Apple
> Foreign File Access version 5.2
>
> This software supports HFS, IS 9660, and High Sierra file formats
> and lets you play audio CDs using the Audio CD Remote application.
> In addition this version of the software allows QuickTime? version
> 1.6 to capture Audio data from Audio CDs using the Apple CD300, the
> Sony CDU-561 and the Toshiba XM3401, XM3501, XM3601, XM4101 and
> XM5201.

? excerpt from document displayed in the installer

Compatibility

CAUTION:
The installer may ask if you want to replace an existing file (for
example, "Audio CD Access"), but will NOT provide enough information
about the existing file and the new file to decide which one to keep
(would need at least: creation date, modification date, version, and
size).

> Problems with Duplicate Files:
>
> Problems may arise using System 7 if Foreign File Access is located
> in both the System Folder and the Extensions folder. If you have
> problems mounting CD-ROM discs on the desktop or using the Chooser
> after installing the CD-ROM software, check to make sure that
> Foreign File Access is located in the Extensions folder and remove
> any extra copies from the System Folder. Using the Installer will
> prevent this situation from occurring.
>
> If You Use Macintosh File Sharing:
>
> CD-ROM discs can be shared using Macintosh file sharing under System
> 7.0. Any CD-ROM discs that are mounted when file sharing is started
> will automatically be shared. However, shared CD-ROM discs can't be
> ejected while file sharing is on. To change a CD in this situation,
> stop file sharing suing the Sharing Setup control panel, then eject
> the CD-ROM disc and insert another if needed. The new CD-ROM disc
> can now be shared by re-starting sharing in the Sharing Setup
> control panel.

? excerpt from document displayed in the installer