Encarta 97 World Atlas: Testing CD-ROM Drive for File Access
  
PSS ID Number: Q176908
Article last modified on 11-20-1997
 

 

 

======================================================================
---------------------------------------------------------------------
The information in this article applies to:
 
 - Microsoft Encarta World Atlas for Windows, 1997 edition
---------------------------------------------------------------------
 
SUMMARY
=======
 
Because of physical read limitations of some CD-ROM drives, you may
be unable to read some of the files and folders on the Microsoft Encarta
World Atlas, 1997 edition, compact disc. This article lists those files
and supplies a method to test your CD-ROM drive.
 
MORE INFORMATION
================
 
To test for specific drive-capacity limitations, try to access the
following files:
 
   Files                          Location On Disk
   -----                          ----------------
   System\Wld_cd.mad                 397-615 MB
   System\Wldwheel.m20               341-397 MB
   System\Msworld.m20                  8-341 MB
 
The Encarta World Atlas, 1997 edition, compact disc contains 615 MB of
data. The final file on the CD-ROM is \System\Wld_cd.mad.
 
Testing Your CD-ROM Drive
-------------------------
 
To test the integrity of files that you have copied from your CD-ROM
drive to your hard disk drive, compare the files using the MS-DOS File
Compare program (Fc.exe). This test can be used to determine if the
CD-ROM subsystem is functioning properly at the device driver or
hardware level(s).
 
The Fc.exe utility is a useful method for testing problems related to
general protection (GP) faults or other critical errors (such as read
errors or out of memory messages) that may occur when you use CD-ROM
drives with Windows programs.
 
Attempt to copy one of the following files to the hard disk drive:
 
   Files                          Location On Disk
   -----                          ----------------
   System\Wld_cd.mad                 397-615 MB
   System\Wldwheel.m20               341-397 MB
   System\Msworld.m20                  8-341 MB
 
For more information about how to perform this task in Windows, see your
Windows printed documentation or online Help.
 
If the following error message appears
 
   CDR101: Not Ready
 
the CD-ROM player cannot read the disk at the specified location.
 
If the file does copy, test the file's integrity by using Fc.exe with
the /B (binary) switch. For example, to compare the Wld_cd.mad file on
the CD-ROM to the version of the Wld_cd.mad file you copied to your
hard drive, type the following at the MS-DOS command prompt, and then
press ENTER
 
   fc  /b  d:\System\Wld_cd.mad c:\Wld_cd.mad
 
where D is the letter of your CD-ROM drive, and C is the letter of your
hard disk drive.
 
If you receive errors, the CD-ROM drive is having problems reading the
compact disc at that location.
 
Additional query words: 1997 multi media multimedia multi-media mmtitles cd
rom cd-rom
======================================================================
Keywords          : kbhw kbsetup
Issue type        : kbprb kbtshoot
=============================================================================
Copyright Microsoft Corporation 1997.