If you are running Macintosh System Software 7.5.3 or newer you must have Apple CD-ROM software version 5.1.7 (or newer) and PC Compatibility software version 1.5 installed before following the procedure described in this article.
It is likely that you do not have the driver for the Apple CD-ROM drive installed in the PC environment. This driver is not installed during the default installation of the PC Compatibility Card software.
To verify that the driver is not installed, first switch to the PC environment. At the DOS prompt, type:
EDIT CONFIG.SYS
The CONFIG.SYS editor appears on the screen showing the loading order for items on the DOS side. If the CD-ROM driver is installed, the last line of the CONFIG.SYS should read:
DEVICEHIGH=C:\\APPLE\\CDROM.SYS/D:CDDRVR
If this line does not appear, you must install the CD-ROM driver, and you should also install QuickTime if you plan on using multimedia CD-ROM discs. Instructions for installing this software are included on page 74 of the PC Compatibility Card User's Manual (For 7-inch card).
Additionally, for the CD-ROM software to function, the AUTOEXEC.BAT file must have the line:
LOADHIGH C:\\DOS\\MSCDEX.EXE /S /D:CDDRVR /L:E
MSCDEX.EXE is documented in the MS-DOS online help feature and not either of the user's manuals.
For more information, type the following at the DOS prompt:
Help MSCDEX
Note: The suggestions in this article are for when the CD-ROM drive is not being recognized on the PC side (that is, no E:\\ drive appears). If the E:\\ drive is visible and a CD appears but is empty, then see the following Tech Info Library article:
Article 20572: "
Read Me For International Keyboards"