This week saw Dark Side Of The Moon, Pink Floyd's 1973 classic album, reach an impressive milestone. The album's position at number 7 on Billboard's Top Pop Catalog chart (down from number 4 last week!) clocks up its 1,560th week on the chart - exactly 30 years! With Roger Waters currently touring the album, sales of this are expected to remain strong over the next few weeks... (Our thanks to Bill Dorn for the info!)