In answer to those owning a Mac and wishing to purchase cds by S-K Publications, I own a Mac, have just received my first cd published by them and it works beautifully. Very clear and readable. They do not have an index, however that is not a problem. The cds can be viewed by Imageviewer. One can download the program free from http://www.imageviewer.com/ I certainly will be buying more cds as they come available. John does quality work. Lula Hankins Hunter