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CD-ROM Drives Requiring Real-Mode Drivers

This article was previously published under Q131499
SUMMARY
Windows can access most CD-ROM drives in protected mode. However,unsupported CD-ROM drives must use the real-mode drivers provided by thevendor. If you use real-mode drivers for your CD-ROM drive, you should useSMARTDrive to obtain optimum performance with the CD-ROM drive.

SMARTDrive is a disk-caching tool included with versions of MS-DOS andWindows. Only version 5.0 of SMARTDrive, included with MS-DOS version 6.2and Windows, can cache CD-ROM drives.

This article lists CD-ROM drives that require real-mode drivers to eitherwork in Windows or be detected by Windows.

Real-mode CD-ROM drivers include:
  • Drivers that must be loaded in the Config.sys file.
  • The Microsoft CD-ROM Extensions (MSCDEX) driver (or third-party equivalent) that must be loaded in the Autoexec.bat file.
MORE INFORMATION

Backpack CD-ROM (External/Parallel Port) from Micro Solutions

The Backpack CD-ROM drive has a proprietary parallel port interface andis not automatically recognized by Windows or Windows NT 3.51 and 4.0.Current Backpack CD-ROM drive models can use a 32-bit protected-modedriver obtainable from the manufacturer for compatibility with Windowsand Windows NT 3.51 and 4.0. This driver can be downloaded from theSoftware Library at Micro Solutions' Web site at:This 32-bit driver loads under SCSI Devices and appears in Device Managerin Windows or Control Panel in Windows NT.

The Backpack CD-ROM drive 16-bit real-mode driver can also be used as analternative in Windows if it is loaded in the Config.sys file andMscdex.exe (or equivalent) is loaded in the Autoexec.bat file. Earlymodels of Backpack CD-ROM drives (single-speed model 160550 and double-speed model 162550) must use the 16-bit driver, as they are not compatiblewith Micro Solutions' 32-bit driver. Therefore, these early models ofBackpack CD-ROM drives are not compatible with Windows NT 3.51 or 4.0.

If Windows or Windows NT still does not access the Backpack CD-ROMdrive, or for information about driver parameters, configuration options,or Windows NT installation steps, please refer to the driver documentationor check the Technical Support area of Micro Solutions' Web site athttp://www.micro-solutions.com before you call Micro Solutions.

CD-ROM Drives on Mozart Sound Cards

Windows requires that the MOZINIT.SYS real-mode driver be loaded in theConfig.sys file and MSCDEX (or equivalent) be loaded in the Autoexec.batfile to access the CD-ROM drive. This driver is necessary to set up thehardware.

For information about the parameters for MOZINIT.SYS and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

Chinon CDS-435 or CDS-535

When you install Windows on a computer with a Chinon CDS-435 or CDS-535CD-ROM drive, the hardware detection portion of Setup does not detect theCD-ROM controller. When Setup is finished, you cannot access the CD-ROMdrive, and the drive is not listed in Device Manager.

The Chinon CDS-435 and CDS-535 CD-ROM drives use a proprietary SCSIcontroller card that is not supported by the Windows protected-modeSCSI drivers.

To use the Chinon CDS-435 or CDS-535 CD-ROM drive with Windows, use thereal-mode device drivers that are included with the drive.

For information about installing the device drivers, please refer tothe documentation that is shipped with the drive, or contact ChinonTechnical Support.

Creative Labs Sound Blaster Value CD4x MK4062

The CD4x MK4062 is not detected by Windows when connected to the IDEcontroller on the sound card. An updated driver, Sbide-95.exe, can bedownloaded from Creative Labs to correct this problem.

Matsushita or Panasonic CD-ROM Drives on Ensoniq Soundscape Cards

Windows cannot detect Matsushita/Panasonic CD-ROM drives if they areconnected to Ensoniq Soundscape sound cards. This is because the Ensoniqsound card offers different I/O ports for the Matsushita/Panasonicinterface than the Windows Panasonic CD-ROM driver supports. The real-mode drivers for these drives must be used.

Media Vision Reno

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

NEC CDR-38, NEC CDR-250, CDR-260, CDR-260R, CDR-260GW

The NEC CDR-38, NEC CDR-250, CDR-260, CDR-260R, and CDR-260GW CD-ROMdrives are incompatible with the ATAPI specification version 1.2.Therefore, Windows cannot detect these drives if NEC_IDE.SYS is notloaded in the Config.sys file and MSCDEX (or equivalent) is not loadedin the Autoexec.bat file. After Windows detects these drivers, it usesprotected-mode drivers to access the CD-ROM drive.


For information about the parameters for NEC_IDE.SYS and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

NEC 55-JD

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

Philips CD-ROM on Media Vision Fusion 16 Sound Card

Windows cannot access this CD-ROM drive when it is attached to a MediaVision Fusion 16 sound card without the real-mode driver being loaded inthe Config.sys file and MSCDEX (or equivalent) being loaded in theAutoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

Philips CM205 and CM206 Proprietary CD-ROM Drives

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

MediaVision has released a Windows driver for the Phillips CM205/206CD-ROM drives. Obtain the 206w95.exe file from the MediaVision Web site(www.mediavis.com) or FTP server (ftp.mediavis.com).

Pinnacle Micro PCD-100

Windows may detect this single-speed drive as a Mitsumi CD-ROM drive(because it loads MTMCDD.SYS in the Config.sys file) and load theprotected-mode Mitsumi drivers. These drivers do not work with thePinnacle CD-ROM drive. To enable the CD-ROM drive, you must reloadMTMCDD.SYS and MSCDEX (or equivalent).

For information about the parameters for the real-mode CD-ROM driver andMSCDEX, please refer to the drive's documentation or contact themanufacturer.

Sanyo (TORISAN) CDR-C3G Multidisk ATAPI CD-ROM

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

For additional information, please see the Hardware.txt file in theWindows folder, or see the following article in the Microsoft KnowledgeBase:
135896 Windows 95 CD-ROM Hardware.txt File

Sony CDU-6201-20

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

Teac CD55A Proprietary CD-ROM

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

A Windows driver for the Teac CD55A CD-ROM drive can be obtained fromTeac. The driver file name is Cd55_w95.zip. Earlier drivers requireMSCDEX.

NOTE: The Teac CD55A Windows driver works only with Sound Blastercards; it does not work with Sound Blaster-compatible cards. Foradditional information, see the Readme.txt file included with the driver.

Wearnes CDD-110

Windows cannot access this CD-ROM drive without the real-mode driverbeing loaded in the Config.sys file and MSCDEX (or equivalent) beingloaded in the Autoexec.bat file.

If Windows still does not access the CD-ROM drive, or for informationabout the parameters for the real-mode CD-ROM driver and MSCDEX, pleaserefer to the drive's documentation or contact the manufacturer.

Mitsumi FX001D & FX001 CD-ROM Drive

These double-speed drives require the real-mode Fx116.exe driver that isavailable on Mitsumi's Web site (www.mitsumi.com). Although these drivesare detected by Setup and the Add New Hardware Wizard, the protected-modedriver does not work and generates a "Windows performed an illegaloperation" error message at 215D:3F42. Use the real-mode drivers instead.
philips cdrom w95hw hwcds
Properties

Article ID: 131499 - Last Review: 01/19/2007 13:24:38 - Revision: 1.2

  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95
  • kb3rdparty kbfaq kbhardware kbinfo kbmm KB131499
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