Problems in CloneDVD

When i tried to burn a dvd, Clonedvd tells me.

NavigationPack 0 VOBU 4 812472 195 Clone 6 TCE.

Is there somebody who can help me to fix that problem.
Best regards Maxzor:p

means that CloneDVD has detected an invalid block-reference. If it happens only with a certain DVD, it is probably a mastering error. Please post a bug-report and the name of the DVD to bugs (at) elby.ch. We will try to reproduce the problem.