Mastering · Engineering
Bob Ludwig
real name Robert Carl Ludwig
Bob Ludwig is credited on 58,473 releases across 6,123 albums tracked on Gatefold, active 1960–2026 — the collector-built map of who actually made the music.
58,473
Credits
6,123
Albums
7
Decades active
7,211
In collections
Biography
Showing the Discogs bio
American mastering and lacquer cutting engineer, born December 11, 1944 in Savannah, Georgia, USA. Started his career at A&R Studios in early October, 1967 and later worked at Sterling Sound (from 1969 to 1975) and Masterdisk, becoming vice-president at both. In 1992 founded in Portland, Maine. In July 2023, he announced his retirement and the closure of Gateway Mastering.
As a rule of thumb he is generally credited as "Bob Ludwig" on pop/rock/mainstream releases and as "Robert C. Ludwig" or "Robert Ludwig" on classical releases. His cuts can be recognized by his initials "RL" or block-lettered "rL" (sometimes misread as "ΓL") etched in the runouts
Bio from Discogs
Credited work
58,473 releases · 6,123 albums · active 1960–2026
- Mastering · 60,976
- Engineering · 719
- Other credits · 96
- Production · 43
- Performance · 1
Studios: Power Station · Electric Lady Studios · Ocean Way Recording · The Hit Factory
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
Ten
1991
Brothers In Arms
1985
Houses Of The Holy
1973
In Utero
1993
The Doors
1967
Rage Against The Machine
1992
Born In The U.S.A.
1984
Master Of Puppets
1986
Random Access Memories
2013
Dookie
1994
Back In Black
1980
In Rainbows
2007
Siamese Dream
1993
Ride The Lightning
1984
Metallica
1991
Sticky Fingers
1971
Let It Bleed
1969
The Velvet Underground & Nico
1967
...And Justice For All
1988
Frequent collaborators
Around the web
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