Correction of dynamic track spacing errors in storage devices

A method for correcting a track shape error in a data storage device having a read/write head and a rotating data storage media, wherein the read/write head has a read element and a write element, and the data storage media has a servo track with a servo burst pattern, and the read/write head traverses a surface of the data storage media, the method comprising steps of:

• a) setting k equal to 0, wherein k represents a servo track number;
• b) applying a track shape error correction factor to a servo track k;
• c) aligning the read element between the servo track k and a servo track k+1;
• d) using positional information from a servo burst pattern of the servo track k to maintain the read element between the servo track k and the servo track k+1;
• e) gathering, simultaneously, a read/write head position reading from the servo burst pattern of the servo track k and a read/write head position reading from a servo burst pattern of the servo track k+1;
• f) determining a dynamic track spacing error between the servo track k and the servo track k+1;
• g) determining a track shape error correction factor for the servo track k+1;
• and,
• h) recording the track shape error correction factor for the servo track k+1.