Buffer optimization for simultaneous encoding-decoding and pause-catch-up for real time DVD recorder

摘要

A method and system for optimizing performance of a read buffer and a write buffer in a disc media having a feature requiring apparently simultaneous reading and writing. The method includes alternately writing data to the disc media from the write buffer during a write time t_W and reading data from the disc media to the read buffer during a read time t_R. The read time and the write time are generally separated by a jump time t_J. The write time is selectively controlled so that it is optimized in accordance with respect to the front end read speed, the decoding bit rate, the front end write speed of the recordable media device and the encoding bit rate.