Those are low quality discs, so try burning at 8x, maybe 12x, and see how it goes. You don't need to remove AnyDVD: just make sure you're using the latest version available and that it's disabled while burning with ImgBurn.
By the way, in the log it shows 'Book Type Setting: N/A' because the drive doesn't report it, but I can assure you it does booktype properly, provided that you're using ImgBurn's default settings.