
PlexCombo 20/10/40-12A Installation and Users Manual
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1. Getting Started
Congratulations! Thank you for purchasing the PlexCombo 20/10/40-12A (the model
number is PX-320A), a reliable, high-performance CD rewriter, CD recorder, and
CD/DVD reader. We appreciate the confidence you have shown in us. Our goal is to
put you—and keep you—on the leading edge of CD technology.
About this Manual
Please read this manual carefully and keep it handy for easy reference. Use the
manual for installation, operation and troubleshooting. See your dealer or call
Plextor’s Technical Support Department should your drive require service.
In this manual you should find all the information you need to successfully install,
operate and troubleshoot your drive. If you run into a problem that doesn't seem to be
covered, however, please contact us. (See “Appendix B: Technical Support” for the
different ways you can contact us.) You will be connected to our friendly, helpful
tech support engineers. What might seem like an uncooperative drive to you could
very well be a 30-second fix to them. But we will never know unless you contact us.
Meet Your PlexCombo 20/10/40-12A
The PlexCombo 20/10/40-12A is a CD-ReWritable drive that provides professional
quality CD performance for writing, rewriting and reading. It also reads digital video
discs (DVDs).
What the PlexCombo 20/10/40-12A Does
The PlexCombo 20/10/40-12A:
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Writes to CD-R (recordable CD) media at up to 20X speed.
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Writes to high-speed CD-RW (rewritable CD) media at up to 10X speed.
(Naturally, the drive can also write to normal-speed CD-RW media at 4X
speeds.)
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Reads all CD-ROM and CD-R media at a maximum of 40X speed with an
average access time of less than 100 milliseconds. (Maximum read speed of CD-
RW media is 32X.)
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Reads DVD discs at a maximum of 12X.
The PlexCombo 20/10/40-12A has an E-IDE interface that supports the ATAPI-5
command set, including special commands for CD-R and CD-RW. Reliable writing
is virtually guaranteed, thanks to unique PoweRec-II (Plextor Optimized Writing
Error Reduction Control) circuitry. This feature automatically detects the type of
media being recorded and adjusts the PlexCombo 20/10/40-12A to provide the
optimum laser power and length of burn—which means the highest quality playback.