Bob Ludwig
Biography
Robert Carl Ludwig (born December 11, 1944) is a retired American mastering engineer. He mastered recordings on all the major recording formats for all the major record labels, and on projects by more than 1,300 artists, including Led Zeppelin, Lou Reed, Metallica, Queen, Jimi Hendrix, Bryan Ferry, Paul McCartney, Nirvana, Bruce Springsteen, Radiohead, Tool and Daft Punk, with more than 3,000 credits. He is the recipient of thirteen Grammy and other awards. In 1992, Ludwig founded his own mastering facility, Gateway Mastering Studios, in Portland, Maine. He retired in 2023.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.

Rumours
1977

Nevermind
1991

Led Zeppelin II
1969

OK Computer
1997

MTV Unplugged In New York
1994

In Utero
1993

The Doors
1967

Houses Of The Holy
1973

Ten
1991

Brothers In Arms
1985

Dookie
1994

Back In Black
1980

Born In The U.S.A.
1984

In Rainbows
2007

Rage Against The Machine
1992

Master Of Puppets
1986

Random Access Memories
2013

Sticky Fingers
1971

Let It Bleed
1969

Ride The Lightning
1984

Siamese Dream
1993

The Stranger
1977

Goodbye Yellow Brick Road
1973

Metallica
1991
Credited work
57,957 releases · 6,087 albums · active 1960–2026
- Mastering · 60,353
- Engineering · 991
- Other credits · 152
- Production · 57
- Performance · 1
Studios: Power Station · Electric Lady Studios · Ocean Way Recording · The Hit Factory
