Patent ID: 7274858

Claim:
A reproducing apparatus for reproducing multiplexed coded data and control data from a recording medium, the multiplexed coded data comprising coded audio-data and coded video-data and being recorded as a plurality of separate data-packs, each of which has a header placed at the head thereof, said header contains information for synchronizing coded video-data with coded audio data, the control data being recorded separately from the multiplexed coded data, said reproducing apparatus comprising: a recording medium controller for reading the multiplexed coded data and control data; and a coded data control section for controlling the reproducing of the multiplexed coded data by controlling the recording medium controller based on the control data; wherein the control data includes key-frame location information, the key-frame being at least one of an I-frame and P-frame, the key-frame location information including information on a head position of a data-pack including a head of the coded video-data of the key-frame or a head of the coded audio-data corresponding to the key-frame; and said reproducing apparatus further comprises a coded data control portion including a sequence table memory area and a key frame table memory area, wherein the control data in said sequence table memory area includes an order of reproduction sequences, wherein the control data in said key frame table memory area indicates the location of key frame data.