Instruct: Classify Amazon reviews into positive or negative sentiment
Query: manufacture-on-demand quality problems?

Like so many others who posted here, I love this filmand was overjoyed when I saw that it had become available.However, Amazon is currently 0 for 2 in sending me a DVDthat will play reliably on my gear. The first copy Ireceived was fine for the first 40 minutes and thenstarted hanging for seconds at a time until the 45minute mark, at which point things got smooth again.This happened on all 4 different devices I tried it on.The replacement copy struggled similarly through thefirst 10 minutes but was fine after that. I'm going tokeep it, but.....