Self-aligned trench MOSFETs and methods for manufacturing the same are disclosed. In an embodiment, the key process parameter is determined using a gene map analysis. The antibody is particularly useful in cancer therapy where the therapeutic agent is selectively delivered to the tumor by increasing the tumorblood ratio of the polyethylene glycol containing compound. The coatings so formed are characterized by anti-reflective, abrasion resistant, and anti-soiling properties. A contrast value matrix is then calculated for each image by calculating a contrast value for each subdivision. During an operation to change to a faster recording speed, a playback operation for an already recorded signal is performed at the recording speed after the change, and an error detection level is set on the basis of characteristics of the servo signal in the playback operation state.