[QUOTE=DrageMester;2125885]Plextor drives are not supported by CDSpeed for quality scans.
If you bypass the blocked scanning feature for Plextor drives by editing the registry, the Plextor drives will scan CD media, but they will not report correctly.
If I remember correctly, Plextor drives wil report [B]bytes[/B] failing C2 error correction per second instead of [B]frames[/B] failing C2 error correction per second), which would explain why the count is higher.[/QUOTE]
This would mean, that Plextor uses two kinds for counting E32-errors in the same software (Plextools Professional).
Both tests are part of Plextools Prof, but the CD/DVD-Test can also be performed by drives, which are not Q-Check-able (e.g. the px 48/24/48), Q-Check only by Plex Premium, px712, 716, 755, and 760.
Is your theory compliable with the difference in errors of about 5 to 6 times between both test?