Plextor PX-W1610TA Operation Manual page 52

Section 6. Frequently Asked Questions about Recording
Why doesn't CD-Copier work?
Some possible reasons are:
Y
Some CD-ROM drives are not fast enough for direct copying to the
PlexWriter. They cannot stream data fast enough to record at the
PlexWriter's maximum speed or are not capable of digital audio extraction at
high speed.
Y
The CD-R disc being used is poor quality, scratched, badly manufactured, or
has oily fingerprints.
Y
Some CDs have copy prevention or other feature that does not allow direct
CD-to-CD duplication.
Y
Software may not support that disc format.
Y
You are trying to copy packet-written discs, which is not possible because of
the difference in technology between packet writing and mastering.
What causes buffer underrun errors?
Recording CDs requires a source device to provide an uninterrupted stream of data.
A buffer underrun occurs when the data stream is interrupted. This can occur if:
Y
You do not have BURN-Proof enabled in your software or your software
does not support this feature.
Y
Another application interrupts the writing process.
Y
The write speed is set higher than the source drive can supply data.
Y
The computer has insufficient RAM (random-access memory).
Y
You are using poor quality discs, scratched discs, discs with fingerprints, or
badly manufactured discs.
Buffer underrun errors are not a problem with the PlexWriter 16/10/40A, thanks to
its remarkable BURN-Proof technology. To eliminate buffer underrun errors, simply
make sure BURN-Proof is enabled in the recording software. Some software
packages, such as Adaptec's Easy CD Creator 4.02, have BURN-Proof support for
the PlexWriter drive permanently on, while other software allows the user to select
whether it is on or off.
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PlexWriter 16/10/40 Operation Manual