In the UK, the Filofax A5 binders have 2 sets of three rings whereas the Franklin Covey Classics have 1 set of 3 rings in the middle, with 1 set of 2 rings both above and below this. The bottom line, to answer your question, is 'No, not compatible'. FYI www.filofax.co.uk and www.franklincovey.com have pictures of the different binder rings.

HTH