Waves 1 through 6. (18cd's)some cases slightly damaged but cd's in fine condition. I inherited these from a neighbor in a box with books so I never used them but they are used. I checked the hemisync site and this collection would be over $600 Canadian.(check hemi-sync.com to confirm) Also included is a supersleep hemisync cd and a brainsync theta cd (not sold separately) text or call 236-969-0181 (new local Victoria number), $150 o.b.o.