Microsoft KB Archive/141402

Bookshelf 95 for Win 95: Testing CD-ROM Drive for File Access

PSS ID Number: Q141402 Article last modified on 03-08-1996

1995

WINDOWS

= SUMMARY =

Because of physical read limitations of some CD-ROM drives, the Microsoft Bookshelf compact disc may deny access to some files and folders. This article lists those files and supplies a method to test your CD-ROM drive.

= MORE INFORMATION =

The CD-ROM drive may have difficulty reading the final three folders, listed below, from the Bookshelf 95 CD-ROM:

Folders Location On Disk ——- —————-

mmcat 541 MB mmcat 539 MB books MB

To test for specific drive-capacity limitations, try to access the following file:

Files Location On Disk —– —————-

mmcat.dib 543 MB

The Bookshelf compact disc contains 543 MB of data. The final file on the CD-ROM is .dib.

Testing Your CD-ROM Drive
To ensure 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 the following file to the hard disk drive:

Files Location On Disk —– —————-

mmcat.dib 543 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 Landpopd.dib file on your

compact disc to the version of Landpopd.dib file you copied to your hard drive, type the following at the MS-DOS command prompt and press ENTER,

fc /b d:.dib c:.dib

where D is the letter of your CD-ROM drive, and C is the letter of your hard drive.

If you receive errors, the CD-ROM drive is having problems reading the disc at that location.

KBCategory: kbhowto kbsetup kbenv kbmm kbhw kbtshoot kbprb KBSubcategory:

Additional reference words: 1.00 multi media multimedia multi-media mmtitles kbmm CD C.D. ROM disc compact disk read only memory errors missing unavailable read-error c-d tshoot troubleshooting trouble shooting ============================================================================= Copyright Microsoft Corporation 1996.