Method for improving magnetic recording at high data rates for waveforms having a burst of transitions

A device for write-precompensating a waveform for magnetically recording the waveform on a magnetic medium, the device comprising:

• a shift register receiving the waveform, the waveform having a plurality of transitions;
• a pattern detector detecting a predetermined pattern of transitions of the waveform;
• and
• a delay device generating a first predetermined write-precompensation delay εl for a second transition of a burst of transitions of the waveform, the burst of transitions having at least four transitions, the second transition being immediately subsequent to a first transition of the burst of transitions, each transition of the burst corresponding to a tick of a write clock having a period T, the first predetermined write-precompensation delay εl delaying the second transition of the burst of transitions with respect to the tick of the write clock corresponding to the second transition, generating a second predetermined write-precompensation delay εt for a last transition of the burst, the second predetermined write-precompensation delay εt delaying the last transition of the burst with respect to the tick of the write clock corresponding to the last transition, and generating a third predetermined write-precompensation delay εm for all transitions of the burst of transitions that are subsequent to the second transition except the last transition of the burst, the third predetermined write-precompensation delay εm delaying each transition of the burst that is subsequent to the second transition with respect to a tick of the write clock corresponding to the transition.