Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You know ! This disc was a DVD-R, not a Blu-ray.

I'm order this title because I think it was Blu-ray Disc.But it's only a DVD-R with AVCHD file on its.Not only a DVD-R, but also this disc have only sound, no picture.Please aware before you place order in this title and similar title.