Good buy, Randy. For about $25 you're getting four terrific CDs. As you know, I constantly suggest the Planets CD for someone wanting to start or expand their classical collection, and Rachmaninoff is probably my favorite composer. In addition to Ashkenazy's set which includes nearly all of his orchestral works I also have the excellent set of complete symphonies with Ormandy and sets with Previn and DeWaart.
David, I have six Planets(just the CDs, not the planets themselves), including Dutoit, which is probably my second favorite, closely behind Mehta.