CD is Not Recognized
After inserting the CD into the CD-ROM drive when prompted, the CD is not recognized. Any number of the following conditions may cause this issue: incorrect CD is used, CD needs cleaned, incompatible CD-ROM drive settings, incorrect CD-ROM driver, or outdated CD-ROM firmware or driver. Consult the remainder of this note for additional information.
Completing the procedures that follow will help to identify the source of the CD-Read issue. Begin with item one and porceed through the list attempting to use the CD after each step.
- Verify that the correct CD is inserted in the CD-ROM drive.
- Clean the CD. Place a small amount of nonabrasive, liquid soap on the shiny side of the CD. Using your fingertips and warm water, gently rub the soap on the CD in a circular motion. Rinse the CD thoroughly and dry it using a clean, soft T-shirt or lint-free towel. Do not use paper towels or tissue paper.
- Change the Read Ahead setting in the following manner:
- Return to the desktop and right-click on the My Computer icon.
- Select Properties from the menu that appears and click the Performance tab in the Systems Properties window.
- Click the File System button and then click the CD-ROM tab.
- Locate Optimize Access Pattern For.
- Click the arrow to the right of the information field and select the No Read Ahead option.
- Restart Windows®.
- Verify that the computer is utilizing a 32-bit file system. In the System Properties window (found in Step 3 above), click the Performance tab. Verify that the File System reads 32-bit. (If it reads anything else, contact the computer manufacturer for installation of the proper CD-ROM or hard drive drivers.)
Turn off DMA in the following manner:
- In the System Properties window (found in Step 3 above), click the Device Manager tab.
- Choose View Devices By Type. In the list that appears, locate CD-ROM or CD-ROM Controller.
- Click the plus (+) sign next to this listing.
- Using the left mouse button, double-click on the name that appears.
- In the Properties window, click the Settings tab. Find the DMA checkbox and remove the checkmark (if one exists).
- Click OK.
Verify that the most current version of the driver and/or firmware for the CD-ROM drive is in use. Contact the computer manufacturer for additional information.
Try to use a different CD in the CD-ROM drive to see if it can be read.
If possible, insert the problem CD into the CD-ROM drive of another computer to see if the issue remains.