This is one of the better Best of YES CD's out there, Please know that it does not seem to have any re-mastered versions, I am not sure where the master source came from. It is a very good collection of late 60's and 70's YES, with the exception of Owner of a Lonely Heart and Leave It which is really great, the acapella mix was a good choice. The Remembering was a good choice from Tales, I Love that song. I bought it to have in my car for road trips, just the right amount of really excellent YES. I do wish a few songs could have made it on the CD's, To be Over and Future Times. Starship Trooper could have been left off for these songs. If you are just getting into YES or are a long time fan, this is a very good selection otherwise. The Roger Dean cover is most excellent, I would love to have that lithograph. Buy this for a really good Best Of and at a good price. Do not expect the sound quality to be re-masters, But with YES at this price point and in the car it works just fine. Enjoy.