The file trackID.gxt2 contains songs that were supposed to appear on Los Santos Rock Radio, but were not included in the final game:
Crowded House — It's Only Natural
Duran Duran - Serious
Golden Earring — Radar Love
Kenny Loggins — I'm Alright
Kiki Dee - Star
Michael McDonald - Blink Of An Eye
Paul Weller - Round & Round
Ram Jam - Black Betty
Rare Earth — Get Ready
Robbie Dupree - Steal Away
Robert Lamm — Sleeping In The Middle Of The Bed (Again)
Small Faces - Tin Soldier
Steve Harley & Cockney Rebel - Make Me Smile (Come Up And See Me)
Stevie Nicks - Sable On Blond
Tears For Fears — Everybody Wants To Rule The World
The Clash — This Is Radio Clash
The Cult - Lil' Devil
The Cult - Outlaw
The Cult - Wild Flower
The Prime Movers - Strong As I Am
More songs were found in the early build of the game on dev PlayStation 3:
AC/DC — Shot Down In Flames
Alanis Morissette - You Ought To Know
Billy Idol - Cradle Of Love
Crosby, Stills, Nash & Young - Ohio
Eric Clapton - Cocaine
Fleetwood Mac - Songbird
Huey Lewis And The News - Hip To Be Square
Maria McKee - Show Me Heaven
Neil Young - Old Man
Olivia Newton-John - Physical
Robin Trower — I'm Out To Get You
Rufus & Chaka Khan - Ain't Nobody
Steve Miller Band - Take The Money And Run
The Cranberries - Linger
In general, all cut tracks are transferred to a separate radio station...