Gonna try to put up a list here, but I have to disclose a few things first:
To me, rock is a very specific genre, one that does not include "rock & roll", or "folk", or other genres...
I am more of a folkie than a rock-head... most of my favorite musicians don't make this list... and now, for 15 songs that I've thought of, some of them I was reminded of by reading this thread:
"Stairway to Heaven", Led Zeppelin
"Born To Be Wild", Steppenwolf
"All Along The Watchtower", Jimi Hendrix
"The Wall", Pink Floyd
"Freebird", Lynyrd Skynyrd
"Layla", Eric Clapton
"Jumpin' Jack Flash", Rolling Stones
"Smoke On The Water", Deep Purple
"Life In the Fast Lane", Eagles
"Crossroads", Cream
"Black Magic Woman", Carlos Santana
"Like A Rolling Stone", Bob Dylan
"Hotel California", Eagles
"Born On The Bayou", Creedence Clearwater Revival
"Born In the USA", Bruce Springsteen
I know, no Beatles... it's not that I don't like the Beatles, it's that most of their stuff that I like was more rock & roll than rock... I was also tempted to include something by Bob Seger, but again, to me he's more rock & roll... and yes, I know this list is pretty much mainstream rock, like I said, I don't listen to all that much rock in the first place...
But I'm thinking I could burn a mix of these 15 songs, and have a good time listenting to them going down the road...