NSIsNotNil NSIsNil NSIsNil NSIsNotNil NSIsNil NSNegateBoolean NSNegateBoolean NSIsNotNil IA NSNegateBoolean Title, or video clip, to encode. The longest title is selected by default. Blu-ray and DVD sources often have multiple titles, the longest of which is typically the main feature. NSIsNotNil NSIsNotNil NSIsNotNil NSNegateBoolean NSIsNotNil NSIsNotNil