Lenovo USB 2.0 CD-RW/DVD-ROM Combo II Drive - Manual (Page 41)

Appendix A. Problem solving
Computer problems can be caused by hardware, software, or user error. The
information in this section might be useful to help you solve problems or to gather
helpful information you can pass on to a service technician. You might also need to
refer to your computer, operating-system, or sound-adapter publications.
Review the following list for any problem descriptions that might fit your
situation.
You cannot create a multisession disc.
Be sure that there is enough space left on the disc for another session. Writing a
session requires lead-in and lead-out space (about 15 MB) in addition to the data
that is recorded.
You cannot successfully write to a CD-R or CD-RW disc.
Take the following actions:
1. Verify that the process is not being interrupted by a screen saver, an antivirus
program, an Internet or e-mail program, or other software. Disable the
functions that might interrupt the write operation.
2. Verify that the hard disc has been defragmented.
3. Consult the hard disc drive manufacturer or vendor if an older hard disc drive
is conducting a thermal recalibration during a write operation.
4. Replace the disc if it is bad or scratched.
5. Try writing at a lower speed if you have been writing at more than 4X.
6. Try a different brand of media.
7. Ensure that the media can be written by the USB Combo Drive II. DVD media,
CD-RW Ultra-Speed Plus media, and CD-R media rated for very high speeds is
not writable by this drive.
You cannot eject a disc.
Take the following actions after ensuring that the drive is not in the process of
writing to a disc:
1. Eject the disc through software.
2. Use the Eject button.
3. Turn off the computer. Wait 45 seconds; then turn on the computer and try
using the Eject button again.
4. If other methods do not work, use the emergency eject mechanism. For more
information, see Chapter 4, “Preparing to use the Combo II Drive,” on page 4-1.
You cannot read from the CD disc after successfully writing to it.
Take the following actions:
1. If you can read the CD disc in another CD player or you can see previous
sessions, the directory information might be damaged on the volume, making it
unreadable. To get ideas for troubleshooting, check the documentation that
comes with the software.
© Lenovo 2006. Portions © IBM Corp. 2004. A-1