A specialist media company burns DVDs of movie clips to customers’ specifications. The company’s staff work a 35-hour week and do not expect to work any overtime. Although the company staffed the operation to produce 300 DVDs per week and demand has been slightly higher than this rate, it has been producing only 250 DVDs per week. A record of one week’s activity shows that recording machine changeovers lost five hours of useful time maintenance lost three hours of useful time, quality checks lost two hours of time and coordination delays accounted for two hours lost per week. What is the utilization and the efficiency of the operation?