Evidently the 2-disc Rhino "Anthology" is out of print, so this is the Grass Roots "hits" CD to get. As other reviewers have said, this one has all the essentials. Plus, the sound (remastering) is very good. As one who was in his teens when most of these songs graced the airwaves, I'm admittedly prejudiced when I say they still sound remarkably tight and wonderfully energetic, not to mention cool. But then, maybe that's my nostalgia kicking in. The group underwent numerous personnel changes during its run. Pictured on the cover of this 16-track collection is the lineup responsible for such Top 40 radio classics as "Let's Live For Today" and "Midnight Confessions." Lead guitarist Creed Bratton (lower right on this cover shot) later went into acting and snared bit parts in several major films such as Heart Like A Wheel and Mask. Singer and rhythm guitarist/keyboard player Warren Entner (pictured standing in back) later managed hard-rock acts in the 1980s. Pictured at lower left is Rob Grill, lead singer and bassist. He put together a new Grass Roots lineup a few years back and hit the road. (In fact, I caught a glimpse of them on a TV show a couple of years ago. Man, he STILL sounded good.) Pictured between Entner and Bratton is drummer and singer Rick Coonce; alas, I'm not sure what became of him after he left the group in the early 1970s. By the way, my fellow diehards, one of the group's better original albums and the first one with new member Dennis Provisor, "Leaving It All Behind," is available from Hip-O Select (which is different from simply Hip-O Records, whose catalogue items Amazon carries). With shipping it'll cost you about $21. It's of course a CD but it's presented in a small, facsimile cardboard album jacket with all the original artwork - front, back and inside - which means the gatefold jacket is square and slightly taller than a standard plastic jewel case or a Digipak. The remastering is great. Hip-O made just 5,000 individually numbered copies. I just received mine in the mail, and it's close to #1,200. In the meantime, until some benevolent company decides to release a more thorough anthology that mimics or surpasses Rhino's 1991 2-disc masterwork, this single-disc CD, All-Time Greatest Hits, is your best choice for a Grass Roots compilation.