Multilayer Pt/Co and Pt/CoCrTa thin film structures have been fabricated that display different levels of intergranular exchange coupling. Perpendicular magnetic recordings of continuous wave patterns have been made using single pole contact heads and examined using a magnetic force microscope (MFM). Analysis of the MFM images show that the recording capabilities of the media are correlated inversely with both the degree of intergranular coupling and the equilibrium domain size. With exchange isolation of the grains, transitions may be written at linear densities >300kfci with good fidelity.