[QUOTE=Ibex;2256865]Welcome to CDFreaks.
The first think I would suggest is trying different writing software. The easiest option would be to download CD-DVD Speed / DiscSpeed from [U][B]here[/B][/U]. You don’t have to install it, just unzip and run the .exe file. Then insert a blank disc, select the ‘Create Disc’ tab and click start. You can save a copy of the graph when the test has finished.
I see that you have also posted the same question here:
Crossposting (posting the same question more than once) is against the forum rules and makes it more difficult for people to help you. Please read the forum rules again.
Sorry for double-posting - I did not find the plextor sub-forum right away.
Thanks for your hint. I try to use the AMQR feature I bought the Premium II for. It runs with other recording software like IBM sonic record now.