Microsoft KB Archive/131361

ASIMOV: Testing CD-ROM Drive for File Access

PSS ID Number: Q131361 Article last modified on 12-15-1995

1.00

WINDOWS

=
========================================================= 1.00 WINDOWS kbsetup kbenv kbmm kbhw kbtshoot kbprb

= SUMMARY =

Because of physical read limitations of some CD-ROM drives, you may not be able to access some files and directories on the Ultimate Robot CD-ROM. This article lists some of those files and directories and explains how to test your CD-ROM drive.

= MORE INFORMATION =

The CD-ROM drive may have difficulty reading the final three directories, listed below, from the Ultimate Robot CD-ROM:

DIRECTORIES LOCATION ON DISC ———– —————-

MMCAT 569-570 MB MMCAT 567-569 MB GOODIES-547 MB

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

FILES LOCATION ON DISC —– —————-

GOODIES4.AVI 543 MB GOODIES630B.AVI 520 MB AURWTIME.WAV 499 MB

The Ultimate Robot CD-ROM contains 570 MB of data. The final file on the CD- ROM is MMCAT.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 can occur with Windows CD-ROM applications.

Try to copy one of the following files to your hard disk drive. For more information about how to perform this task in Windows, see your Windows printed documentation or online Help.

FILES LOCATION ON DISC —– —————-

GOODIES4.AVI 543 MB GOODIES630B.AVI 520 MB AURWTIME.WAV 499 MB

If the following error message appears

CDR101: Not Ready

the CD player cannot read the disk at the specified location.

If the file copies, test the file’s integrity by using FC.EXE with the /B (binary) switch. For example, to compare the NGPOPD.DIB file on your CD-ROM with the NGPOPD.DIB file on your hard disk drive, type the following at the MS-DOS command prompt and press ENTER

fc /b d:.dib c:.dib

where your CD-ROM drive is drive D, and your hard disk drive is drive C.

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

KBCategory: kbsetup kbenv kbmm kbhw kbtshoot kbprb KBSubcategory: multi media multimedia multi-media

Additional reference words: kbhowto tshoot 1.00 mmtitles kbmm gpf gp-fault compact c-d-rom ====================================================================== Keywords : media multi multi-media multimedia Version : 1.00 Platform : WINDOWS ============================================================================= Copyright Microsoft Corporation 1995.