Instruct: Classify Amazon reviews into positive or negative sentiment
Query: CALLAS technical quality POOR

Although the interviews, etc., with and about Callas are excellent and enlightening and very interesting, the technical quality of this DVD is poor, out-of-focus shots, many blurry, and so it is difficult to recommend this dvd. Why didn't the people responsible for the technical quality use the same equipment and techniques as those by Maximillian Schell when he made the technically perfect and beautiful DVD with Marlene Dietrich, in his documentary about her called, "MARLENE"? THIS "CALLAS" NEEDS REMASTERING, both picture and sound!