CHICAGO Group Portrait Vol. 1-4 (1991 US 63-track digitally remastered 4-CD box set, which spans their career on Columbia from 1969 to 1981, including seventeen top-twenty hits like If You Leave Me Now, Does Anybody Really Know What Time It Is?, Make Me Smile & Colour My World, housed in a 12" x 6" picture long box with extensive notes, interviews & rare photographs - still sealed in original stickered shrinkwrap C4K47416)