Rate 8/14 asymmetrical DC control code for optical disks

A new run-length-limited (RLL) code for optical disks is described. It is a rate 8/14 asymmetrical (d1,d2,k)=(2,1,11) code that has a better detection window size. Compared to the EFMPlus code, the ARL code has a 1.6 dB gain in the required SNR at a BER of 10/sup -4/.