Welcome to this week's Release Round-Up! Fleetwood Mac, 50 Years: Don't Stop (Warner Bros./Rhino) 3CD: Amazon U.S. / Amazon U.K. / Amazon Canada 1CD: Amazon U.S. / Amazon U.K. / Amazon Canada 5LP: Amazon U.S. / Amazon U.K. / Amazon Canada In celebration of its 50 years, Fleetwood Mac is issuing a new career-spanning collection featuring 50 songs on either 3 CDs or 5 LPs. These include hits, favorites, and a smattering of rarities such as the CD premiere of 2013's "Sad Angel"