These days if it had to be a "CD" it would be an MP3-playable CD disc with 150 songs on it of my choosing. Of course, I would prefer to have my iPod or a DVD-ROM (with a thousand songs) with me.
So, if you were marooned on a desert island..........................
The Beatles -- Abbey Road
David Bowie frequently raised this question and answered it, usually wanting to give props to some legendary blues or soul artist. On occasion, he would mention, Buddy Guy. I could live with that.
My personal preference would be any one of 10 Dylan albums. I usually listen to those for a year or two, then again.