Disclosed is a rotatable media storage device (RMSD) connectable to a host. The RMSD include a movable head to perform track following, a disk, and a synch mark detection circuit. The disk includes a circumferential track that has a plurality of embedded servo wedges utilized in track following. The synch mark detection circuit has a first detection mode and a second detection mode. In the first detection mode, the synch mark detection circuit detects a servo synchronization signal based on the head reading a SSM of a servo header of an embedded servo wedge. In the second detection mode, the synch mark detection circuit detects a servo synchronization signal based on the head reading a SSM and a wedge identifier of a servo header of an embedded servo wedge. The wedge ID is utilized in conjunction with the SSM to validate the servo synchronization signal.

 
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< Disk drive having a disk including a servo burst pattern that improves the signal to noise ratio during track following for writing

< Method of self-servo writing in a disk drive using a spiral pattern

> Adaptively estimating a read access time to a second track based upon the binned radial position of the second track within a rotating media storage device

> Acceleration disturbance detection subsystem for use with disk drives
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