Keith Keller – engineer (Disc two: 5) Scott Woodman – engineer (Disc two: 7, 8) Stacy Baird – engineer (Disc two: 9-11, 13-17) Clark German – engineer (Disc two: 9-11, 13-17) Dusty Wakeman – engineer (Disc two: 18) Peter Doell – engineer (Disc two: 18) Paul duGré – engineer (Disc two: 19 / Disc 3: 8, 9), mixing (Disc three: 8, 9) John Paterno – engineer (Disc four: 1-5, 7, 8, 17-20), assistant engineer (Disc three: 1-7, 13, 14 / Disc four: 15), mixing (Disc four: 8, 12-14) Bill Jackson – engineer (Disc three: 10, 17, 19), mixing (Disc three: 19) David Wells – engineer (Disc three: 11, 16) Warren Dennis – engineer, mixing (Disc three: 16) Dave McNair – engineer (Disc four: 9-11), mixing (Disc four: 9, 10) Husky Hoskulds – engineer (Disc four: 17-20), assistant engineer (Disc four: 15) Mike Monroe – engineer (Disc four: 16) Louis Stetzel – engineer (Disc four: 21) Charles Paakkari – assistant engineer (Disc one: 10-14, 16) Judy Clapp – assistant engineer (Disc one: 17) David Glover – assistant engineer (Disc one: 19-25) Mike Kloster – assistant engineer (Disc one: 19-25) Jimmy Preziosi – assistant engineer (Disc one: 19-25) Doug Schwartz – assistant engineer (Disc one: 19-25) Tony Chiappa – assistant engineer (Disc one: 17, 19-25) Magic Moreno – assistant engineer (Disc one: 19-25) Dan Bosworth – assistant engineer (Disc two: 9-11, 13-17 / Disc three: 1-7)) Eric Rudd – assistant engineer (Disc two: 9-11, 13-17) Brian Soucy – assistant engineer (Disc two: 9-11, 13-17), mixing (Disc four: 17) Tom Nellen – assistant engineer (Disc two: 9-11, 13-17) Neal Avron – assistant engineer (Disc two: 9-11, 13-17) Julie Last – assistant engineer (Disc two: 12) Wendy Thompson – assistant engineer (Disc two: 19 / Disc three: 8, 9) Steve Gamberoni – assistant engineer (Disc four: 9, 10) Fred Rennert – assistant engineer (Disc four: 9, 10) Robert Breen – assistant engineer (Disc four: 11) Howard Willing – assistant engineer (Disc four: 17-20) Josh Turner – assistant engineer (Disc four: 17-20) Joe Zook – assistant engineer (Disc four: 17-20) Joe Ferla – mixing (Disc two: 6) Ralph Sall – mixing (Disc two: 18) Ray Blair – mixing engineer (Disc two: 18) Mike Kloster – mixing assistant (Disc two: 19) Michael Prince – mixing (Disc three: 16) John Holbrook – mixing (Disc four: 7) Paul Rabjohns – digital assembly (Disc three: 19) Box set Gary