Texture noise and its impact on recording performance at high recording density

Mechanical texture and its impact on recording performance at high recording density have been studied experimentally in this paper. We found that texture noise has a negligible effect on the recording performance in modern disks, even at high density. Texture noise can well be explained by a band pass modulation model. Experimental evidence shows that texture caused amplitude modulation can appear as jitter, which proves statements from the modulation theory as suggested by V. Minhuin [J. Appl. Phys. April 1999],