Patent ID: 7529049
Filing Date: 2009-05-05
Classification: G11B

Abstract:
1. A disk testing system, comprising: a hardware module configured to determine a Functional Byte Error Rate (F-BER) of a disk based on read back signals from a sensor reading the disk and output the F-BER, wherein the output F-BER is usable for at least one of ranking the disk and projecting an error rate performance of a recording system using the disk; and a hardware module configured to receive the read back signals from the sensor and wherein the hardware module to determine the F-BER is configured to use the read back signals to determine F-BER, wherein the hardware module to receive read back signals is configured to calculate at least a signal at low frequency (LF TAA), media noise (Nm) and a half-peak pulse width (PW50) and the hardware module for determining F-BER is configured to use at least the LF TAA, Nm and PW50 to determine F-BER.