Microsoft KB Archive/141561

Explorapedia Nature: Testing CD-ROM drive for File Access

PSS ID Number: Q141561 Article last modified on 03-21-1996

1.00

WINDOWS

= SUMMARY =

Because of physical read limitations of some CD-ROM drives, the Microsoft Explorapedia World of Nature 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 Explorapedia World of Nature compact disc:

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

Files Location On Disk —– —————-

.cnf 638 MB 182877a.avi 620 MB 113428a.avi 599 MB 105143a.avi 580 MB 100624a.avi 560 MB

The Explorapedia World of Nature compact disc contains 638 MB of data. The final file on the CD-ROM is .cnf.

Testing Your CD-ROM Drive
To ensure the integrity of files that you have copied from your compact disc to your hard 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 drive:

Files Location On Disk —– —————-

.cnf 638 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 drive 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 Win.cnf file on your compact disc to the version of Win.cnf file you copied to your hard drive, type the following at the MS-DOS command prompt and then press ENTER,

fc /b d:.cnf c:.cnf

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: 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 tad explorapedia nature xplora cd rom kbhowto ============================================================================= Copyright Microsoft Corporation 1996.