I'm using Nero CD-DVD/Speed 4.50 to test my DVD media with my Sony DW-Q28A DVD burner. The test completes OK but I never get any Jitter or PO Failures, there is just a dash for those scores so it is not testing it for some reason. Also the "Show Jitter" box is checked but it is greyed out. Does this have soemthing to do with my DVD drive not supporting this?

Thanks.

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