A method of recording data on a recording medium includes mapping the data to a set of write symbols wherein each write symbol represents more than one bit of the data. The set of write symbols is defined by defining a set of variable write parameters; generating a plurality of candidate write symbols...http://www.google.com.au/patents/US7002890?utm_source=gb-gplus-sharePatent US7002890 - High density analog recording using write symbols having distinguishable readout waveforms
