A coating composition comprising a binder ofa. The method also includes calculating a number of control vector symbols to allocate to control information based at least in part on the estimated number of vector symbols and the determined number of bits. The rod retention member is movable from a blocking position occluding a hinge rod passageway through interleaved hinges of consecutive rows of belt modules to an unblocking position clear of the passageway. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. An elongated arm has first end and a second end. A method of recording data on andor reproducing the data from a high density optical disc having a defective area, includes recording the data in a predetermined recording area having the defective area, and recording end data indicating an end of the recording before the defective area.