Instruct: Classify a given Amazon review as either positive or negative.
Query: Defective DVD authoring

Who did the DVD authoring on this POS and what drugs were they on? I have had 2 copies of it and neither would play on a standard DVD player. I can only get it to play fitfully on my computer using Real Player. Even then, no menus, no way to jump between chapters, no way to get it to play continuously. The concerts are really cool but Cherry Red should be ashamed of the quality of the product.