IBM 71P7285 manual v The disc cannot be read. Take the following actions

6.Select CD-ROMfrom the list that is displayed in the Device Manager window. Verify that a CD-ROM device is present in the list and that no conflicts exist. The device status indicates whether the device is working properly.

7.Click OK.

8.Close all windows and restart the computer.

If the device icon is still not present, check cable connections and device-jumper settings, and resolve any conflicts that might exist.

vThe DVD-ROM drive is not recognized by the operating system, or the drive performs erratically.

Some computers have Compatible and High Performance modes for mass storage devices. Normally, the DVD-ROM drive functions better under the High Performance mode. However, if your drive is not functioning properly in that mode, you might need to use the Compatible mode.

Use the following procedure to check the configuration-setup information for your computer.

1.Access your system configuration utility program. Pressing F1 at system startup does this on most IBM computers.

2.Select Devices.

3.Scroll down to the Mass Storage Devices section.

Refer to the documentation that comes with your computer for additional details on selecting IDE performance modes.

vThe disc cannot be read. Take the following actions:

1.The disc might be dirty; clean it as described in “Caring for a CD or DVD” on page 1-11.

2.The disc might be defective; try another disc.

3.The disc is not ISO-9660, High Sierra Group (HSG), or Universal Disc Format (UDS) compatible. Check with your place of purchase.

vThere is no sound from the disc.

1.Check that you are not using a data CD.

2.Adjust the audio-adapter volume control. See the documentation that comes with your audio adapter and audio-CD player program.

3.Turn off the computer, unplug the cables from the electrical outlets for your computer and all attached devices, and remove the computer cover. Ensure that the audio-signal cable connects the DVD-ROM drive with the sound adapter.

vYou receive a common error message.

Take the following actions for these common error messages:

– CDR-103

Appendix B. Problem solving B-3