Plextor PX-320A User Manual page 13

• Keep your CD and DVD discs free of dirt or other contaminants, by storing them
in jewel cases. Use only industry-standard discs. Do not insert dirty, warped,
poorly balanced, or cracked discs into the drive.
• Do not clean discs using a circular motion. Instead, use a radial motion: start at
the center of the disc and proceed to the outer edge. See Figure 19.
NOTE: You can install your PlexCombo horizontally or vertically. If you install it
vertically, the vertical orientation must be with the drive's right side up (as viewed
from the front).
PlexCombo 20/10/40-12A Installation and Users Manual
Section 1. Getting Started
7