Making Q-Check Jitter/Beta Measurements - Plextor PX-712 Installation And User Manual

Section 5. Advanced Features and PlexTools Professional
The FE/TE test result shows maximum writing speed for each media.
However this maximum writing speed is specific for a particular drive;
you cannot assume this speed applies to any other drive. If your discs
consistently show high rates of focus error or tracking error, you should
probably try a disc from a different vendor.
NOTE: The TE/FE measurements are accurate only for a blank
recordable or rewritable DVD or CD. If you attempt to measure a
recorded or pre-recorded, commercially pressed DVD or CD, the
measurements have no meaning.

Making Q-Check Jitter/Beta Measurements

This function reports on the degree of beta and jitter on the CD or DVD
in the Plextor PX-712 drive. This test is for use on a disc that contains
content—that is, a commercial pressed CD or DVD, or a disc recorded
on a CD or DVD drive.
To measure jitter and beta:
1. Place a pressed or recorded CD or DVD in the PX-712.
2. From the PlexTools menu bar, select Q-Check Beta/Jitter Test. You
see the Q-Check window with a graph for beta and jitter.
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PX-712 Installation and Users Manual