Article ID: 141368 - View products that this article applies to.
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When you run a program that accesses a CD-ROM drive, you may notice that the program is not performing optimally. You may notice slow data transfer in a business or reference program, or skipping or slow audio and video in a multimedia program.
This behavior can occur when the Supplemental Cache Size and Optimize Access Pattern For settings are not be set correctly for your CD-ROM drive.
To resolve this issue, follow these steps improve your CD-ROM drive's performance:
The supplemental cache is used to hold path table, directory, and file information. It is a passive cache holding data that has been accessed and may be accessed again.
The Optimize Access Pattern For setting is based on a 64K cache (single- speed read ahead plus 14K random access cache). This is incremented in 50K increments depending on the CD-ROM drive speed. It is an active buffer storing data initially read from the CD-ROM.
The default cache size is not based on the CD-ROM drive, but on the amount of RAM in the computer, as follows:
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