The cds that come with Carol Doak's books are not how to paper piece, they are for printing out the block patterns. Foundation Factory is a software program that is all for paper piecing. All of Carol Doaks cds will install to Foundation Factory but also will stand alone. FF was on sale a few weeks ago for 50% off at Quilt Pro website. Quilt Pro is a quilt program that will support FF in designing quilts.