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In magnetic recording, overwrite (OVW) measures how well the old data is suppressed by the new data [1]. In perpendicular recording, OVW is typically gauged by overwriting a high-frequency data pattern (e.g. 2T) with a low-frequency data pattern (e.g. 13T), and the OVW is called Reverse OVW (ROVW) [2]. It is frequently observed that higher OVW doesn't lead to higher Signal to Noise Ratio (SNR) or...
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