PC, Mac, Photoshop CS & Photoshop Elements
There are no compatibility issues with LayerCake collections because they are not applications, or programs, they are simple tiff and jpg files. That means they will work with any operating system on a PC or a Mac.
They work best with any CS version of Photoshop and will also work with any version of Photoshop Elements on layered files or backgrounds. The one software incompatibility issue is that Photoshop Elements is not capable of loading actions or styles such as our famous Buddy Action sets that will cut holes in mats, color type and add image effects with filters. However with the drag and drop capabilities of Elements, you can still create many of the same effects manually.