Not exactly sure what's retro, but here's some stuff that's at least 20 years old (from what I can recall).

Rancid - Let's Go
Genesis - We Can't Dance
Genesis - Wind & Wuthering
Duane Eddy- Have Twangy Guitar, Will Travel
A Tribe Called Quest - People's Instinctive Travels and the Paths of Rythm
The Byrds - Mr. Tambourine Man
Metallica - Ride the Lightning
Creedence Clearwater Revival - Green River
The Prodigy - The Fat of the Land
Bruce Hornsby and the Range - The Way It Is
Bad Brains - Bad Brains
The Fugees - The Score
Potshot - Pots and Shots
AFI - Shut Your Mouth and Open Your Eyes
Boston - Boston
Paul Simon - Graceland
Oasis - Definitely Maybe
Chemical Brothers - Dig Your Own Hole
Roni Size - Reprezent
The Cro Mags - Best Wishes
Operation Ivy - Energy
Tori Amos - Under The Pink
The Cranberries - No Need to Argue
REM - Green
Judas Priest - British Steel

The list is getting long, but I could go on and on.