HP 732c (US), 740n (US) Up-To-Date Troubleshooting Information, HP Troubleshooting Assistant

Chapter 9 Troubleshooting

This chapter provides descriptions and solutions for some hp dvd-writer drive hardware and software problems, and is organized as follows:

Up-To-Date Troubleshooting Information	p. 81
HP Troubleshooting Assistant	p. 81
Improving Drive Performance and Reducing Errors	p. 81
Software Errors	p. 83
Installation	p. 84
Making Audio CDs	p. 86
Reading CDs	p. 86
High Speed CDs	p. 88
80-Minute CDs	p. 88
Unable to Hear Music	p. 90
DLA 2.5 Known Problems	p. 91

Up-To-Date Troubleshooting Information

Up-to-date troubleshooting information is available from the following web sites: http: //www. hp. com/support/dvd-compatibility

http: //www. hp. com/support/dvd-capture

http: //www. hp. com/support/dvd-mydvd

http: //www. hp. com/support/dla

Frequently asked questions and answers are provided in Chapter 6 Tips and Techniques.

Release Notes for the hp dvd-writerdvd100i drives are on page 96.

HP Troubleshooting Assistant

More troubleshooting information is available in the browser-based HP Troubleshooting Assistant, which is installed with the drive.

NOTE: Double-click on the hp dvd-writer icon on the desktop, then click on Help, then click on Troubleshooting.

Figure 47 hp troubleshooting screen

Improving Drive Performance and Reducing Errors

Enabling Direct Memory Access to Enhance System Performance

Many computers and computer hardware devices come with a feature called Direct Memory Access (DMA). When you enable DMA, you accelerate data transfer between hardware devices because of a shortcut called the DMA channel. The DMA channel permits data to completely bypass the computer's CPU and travel directly from main system memory to the intended hardware device. By removing the CPU passageway,

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