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ULTRAPLEX 40X OPERATION MANUAL
Symptom
Additional Symptom
• CDR101—Not Ready
• All commands sent to the drive
Reading Drive [X]
result in CDR101 error
Possible Causes and Solutions
Audio CD Disc in the Drive
Plextor CD-ROM drives are capable of playing high-quality audio when used
with appropriate audio playback software or when the drive is set to Audio CD
play mode, Chapter 11. Since audio compact discs do not have computer
data, typing standard data commands when an a CD-Audio disc is in the drive,
will result in an error message.
Defective CD-ROM Disc
A fingerprint, contaminants, or deep scratches on the disc’s surface may
prevent the drive from reading data. Read Chapter 10 to learn how to clean
CD-ROM discs.
You should also review the low performance symptom discussed on page 60.
Bad Connection Between the CD-ROM Drive and the SCSI Interface Board
Inspect the cable, drive, and interface card for recessed, broken, or bent pins.
If a ribbon cable is used, inspect for any signs of distress, such as kinking.
Symptom
Additional Symptom
• CDR103—Not High
• Occurs with certain discs only
Sierra Format
Possible Cause and Solution
Incorrect Disc
The disc might be intended for another type of computer, such as a Macintosh
or Sun, or it is not mastered in the High Sierra or ISO 9660 formats.
CHAPTER 12 — Troubleshooting
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