A recording/reproducing apparatus is provded for dispersedly recording one-frame data on a plurality of tracks. The recording/reproducing apparatus includes a trans-codec for format converting received digital data into sync blocks each of which has a predetermined size and converting the sync blocks...http://www.google.com.hk/patents/US6438727?utm_source=gb-gplus-share專利 US6438727 - Threefold error correction coding method and apparatus for high definition digital video cassette recorder
