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Errors occur when backing up at 6X speed from a separate CD-
ROM drive to the CRW6416SX drive.
● A possible reason is that the CD-ROM drive is not suitable. Please use a
high-speed CD-ROM drive. However, for various possible reasons, you
may still encounter errors even if you are using a 32X or 42X speed CD-
ROM drive. Therefore, before writing directly at 6X speed, you should
check that it is possible to do so by choosing to test before writing.
The “Buffer Underrun” error message is displayed.
● Try the following:
• Lower the writing speed setting (e.g., from 4x speed to 2x speed).
• Create an image file of the CD on the computer’s hard disk.
• Defragment the hard disk.
• Turn hard disk power management off.
• Deactivate the Active Desktop (if you are using Internet Explorer 4 or 5).
• Disable network access.
• Close other applications (including screen savers, task schedulers, etc.).
n Errors can occur if you knock the CRW6416SX drive while it is writing to disc.
n When using packet writing on a CD-RW disc, the actual data capacity is 100MB less than that
stated on the cover of the disc. The difference in capacity is dependent on the writing mode.
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Troubleshooting
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