This post is beyond awesome

Hello.Problems with DVD Shrink - i have a HP external dvd burner that i have had since last Christmas. And now for the last week or so it comes up with this error message: DVD Shrink encountered an error and cannot continue. Invalid DVD navigation structure. With this message i have been able to bure some dvds and others come up with that message before it can analysis it. Now is my burner fucked or is this fixable.