Instruct: Classify Amazon reviews into positive or negative sentiment
Query: ruined sound

I purchased this box in 1990 when it came out.Since I had it stolen and the new sets are ruined with terrible drum tracks and altered out of tune guitars in spots. And this is intentional whether its the government or the industry. Most classic rock cds in my area are ruined with crashing symbols and terrible drum tracks. They used to sound great a few years ago,and this boxed set was among the best.