Oops
Electric Light Orchestra
Kiss
Foreigner
Bad Company
Aldo Nova recorded five albums so he qualifies
John Waite
Van Halen
Kinks
Rolling Stones
Alanis Morissette
The Decemberists
Def Leppard
Del Amitri
Billy Joel
Black Sabbath
Bruce Springsteen
Bush
The Cars
Creedence Clearwater Revival
The Cult
David Bowie
Dire Straits
The Doors
Duran Duran
Genesis
George Harrison
John Lennon
Paul McCartney and all his projects
ZZ Top
Steve Miller
Jefferson Starship
Jethro Tull
Judas Priest
Julian Lennon
Kansas
Liz Phair
Metallica
Moody Blues
Oasis
Pat Benatar
Pearl Jam
Queen
Peter Gabriel
The Pretenders
Oh, R.E.M
The Rainmakers
The Replacements barely made the qualifications
Are we counting White Zombie and Rob Zombie?
Robert Plant
everything Jimi Hendrix was involved in
Scorpions
Slade
Steely Dan
Sting
Styx
Stone Temple Pilots
Supertramp
Stevie Ray Vaughan
Talking Heads
Tom Petty and The Heartbreakers
Tool
Triumph
U2
The Who
Yes
Green Day
Better Than Ezra
I mean, many of the groups I have listed, I have the majority of their studio albums. And stuff that is not part of the parameters set by the thread.
However, I also have a hard drive full of music I did not acquire the traditional way. So I’m only listing the music that has a physical presence. It’s from the collection I earned.