Video signal recording and reproducing apparatus for digital video cassette tape recorder

Tape-independent video signal recording and reproducing apparatus

Information recording method with protection function of previously recorded information

Multi-rate optical disc recording and reproducing apparatus

변속 재생용 정보 기록방법 및 그 장치( )

멀티-레이트 광디스크 기록 방법 및 그 장치( )

Transport bit stream recording/reproducing apparatus and method

방송안내신호기록장치( )

Recording method of digital magnetic recording medium for copyright protection and variable speed playback

Apparatus for limiting reproducible number of magnetic recording medium