Method and apparatus for recording MPEG-compressed video data end compressed audio data on an optical disk having a diameter leas than 140 mm and, a thickness of 1. The content management system can reside in a central location or be distributed amongst multiple different locations in a network environment. The blade and the sipe have two radially adjacent rows of projections, wherein the projections are separated by a planar section, the planar section having a defined length and width.