Plextor PX-712 Installation And User Manual page 84

Section 5. Advanced Features and PlexTools Professional
To use PlexTools Professional to measure tracking and focus error:
1. Place a blank DVD+R/RW, a DVD-R/RW, or a CD-R or CD-RW
disc in the PX-712. (Don't use a pre-recorded, commercially
stamped disc.)
2. From the PlexTools menu bar, select Q-Check FE/TE Test. You see
the Q-Check window with a graph for focus error and tracking error.
Figure 36: Q-Check FE/TE Test window
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PX-712 Installation and Users Manual