NEC Technologies, Inc.
			       NECCDR.SYS 
		   CD-ROM Device Driver Version 2.40NEC


I. GENERAL PRODUCT OVERVIEW:

    1)  Product description:

	The NECCDR.SYS CD-ROM device driver program is to be used with
	Future Domain SCSI Host adapters to support one or more CD-ROM
	drives on a DOS-based host system.  The device driver can support
	from 1 to 24 CD-ROM drives (via up to 4 SCSI adapters) on the
	PC, PC/XT, PC/AT and Micro Channel Architecture (PS/2) environments.
	Photo-CD is supported on drives as noted in section 2.

    2)  Table of supported NEC CD-ROM drives on 8-bit and 16-bit adapters:

	     SUPPORTED NEC CD-ROM DRIVES
	     ---------------------------------------------------------
	     CDR-25, CDR-38, CDR-55, CDR-72, CDR-73, CDR-74, CDR-74-1,
	     CDR-83, CDR-84, CDR-84-1, CDR-400, CDR-500, CDR-600
		     (M-series are also supported)

    3)  Table of NEC Drives supporting Photo-CD:

		MODEL NUMBERS      SINGLE-/MULTI-SESSION
		-------------	   ---------------------
		  CDR-25	   Single-session
		  CDR-38	   Single-/Multi-session
		  CDR-74	   Single-session
		  CDR-74-1	   Single-/Multi-session
		  CDR-84	   Single-session
		  CDR-84-1         Single-/Multi-session
		  CDR-400	   Single-/Multi-session
		  CDR-500	   Single-/Multi-session
		  CDR-600	   Single-/Multi-session

II. SYSTEM REQUIREMENTS:

	- IBM PC with 286 or later processor.	

	- MS or PC DOS Version 3.x - 6.0.

	- MS DOS Extensions Version 2.20-2.22 (Version 2.22 included)

	- A Hard Disk Drive. (Optional)
	  (Not necessary for device driver or host adapter but
	  may be necessary for some CD-ROM application programs.)


III. INSTALL/TECH TIPS (READ BEFORE INSTALLATION):

    1)  Command line parameter '/I' (controls Disk Change status)
        If this switch is not specified, the driver will not return an
        "Invalid Disc Change" error if the SAME disc is reinserted into
        the drive.  This may cause a problem if two different disc's
        having the same volume size are being used.

        If you are experiencing this problem, specifying the /I switch
        will force the driver to always return an "Invalid Disc Change"
        error anytime a disc is changed. (SAME or DIFFERENT disc)

        Usage:  DEVICE=C:\DEV\FDCD.SYS /D:MSCD000 /I

    2)  LASTDRIVE = Z in the CONFIG.SYS file.
	
	The Simple Start installation programs (Install.Exe for DOS, and
	Setup.Exe for Windows) use drive letter "L" as the default assignment
	for the CD-ROM drive.  While the "Novice" option does not allow the
	user to modify this assignment, the "Custom" option allows the user
	to assign any available letter to the CD-ROM drive.  (Caution:  Before
	assigning a drive letter to your CD-ROM drive using the Custom option 
	of the Simple Start installation program, BE SURE that the letter you 
	are choosing is not already assigned to another device on your system!)
	The Custom option in the Windows Simple Start installation (Setup.Exe)
	will use the CD-ROM drive letter in the "LASTDRIVE = " line in 
	CONFIG.SYS.  The other Simple Start options all use "LASTDRIVE = Z".

	The PowerSCSI! installation program (Powerwin.Exe) will default to 
	using the first available drive letter for the CD-ROM reader, and 'Z'
	as the "LASTDRIVE".  

        After your computer setup is complete and your CD-ROM and any other
	peripherals have been added, it is a good idea to change the "LASTDRIVE
	= Z" statement to "LASTDRIVE = x" where "x" is the last drive letter
	being used by any device on your system.  Doing this insures that DOS
	does not reserve any more drive letters than necessary.

        Example:  If you have one fixed drive with two partitions using
       		  drive letter C & D and one CD-ROM drive using drive
		  letter E, set LASTDRIVE to E (LASTDRIVE = E). This is
		  very important for Network users so that drive letters
		  will be available to access Network drives as in a
		  Novell environment.

    3)  For compatibility with the Future Domain's FDDEVICE.SYS device
        driver, load the FDDEVICE.SYS driver before loading NECCDR.SYS
        in the CONFIG.SYS file.


IV. TESTED SOFTWARE SUPPORT:

    Microsoft:
	- TESTDRV.EXE (CD-ROM device driver test program)
	- CDSPEED.EXE (CD-ROM Data Streaming Transfer Rate Test)
	- Windows 3.0 with Multimedia extensions V1.0
	- Windows 3.1
	- BookShelf
	- Programmer's Library
	- Musicbox with a variety of audio discs
	- Multimedia Beethoven

    National Geographic Society:
	- Mammals: A Multimedia Encyclopedia
	- The Presidents
    
    Sierra Online:
	- Mother Goose
	
    Software Toolworks:
	- CD Game Pack
	- Illustrated Encyclopedia
	- US Atlas
	- World Atlas

    Animotion:
	- MCS CDMaster


    NOTE:  The CD-ROM device driver will work under Windows 3.0/3.1 in REAL,
	   STANDARD and ENHANCED mode.  Depending on the application being
	   used, you may be limited to using REAL mode.  Contact the
	   manufacturer of the application for compatibility under Windows.


V. TECHNICAL SUPPORT:

   NEC's Technical Support Department can be reached at:

		NEC Technologies, Inc.
		1414 Massachusetts Avenue
		Boxborough, MA  01719

		Telephone #:  (800) 388-8888
	        Fax #:        (508) 635-4666

		Monday - Friday, 8:30 A.M. - 8:00 P.M. EST.