This box set is awesome. It contains the whole of his 3 Greatest Hits cds, plus a bonus disc which contains Questions and Answers recorded live at Columbia University in 1994, plus 6 previously unreleased songs. I already had the double cd "Greatest Hits 1 and 2" when the remastered edition came out, and I was going to replace it with that and also get the "Greatest Hits volume 3". But when I saw this set, I figured it was a much better buy, especially with the 4th disc that is unavailable anywhere else. Plus the 44 page book is pcked with photos, all the lyrics and an in depth essay called "A portrait of the artist" by Timothy White. A must for Billy Joel fans.