Patent ID: 8594491

Claim:
A transport stream recording device for recording input transport streams on a data recording medium, comprising: a header attachment section configured to attach a header to a transport packet in a transport stream that includes a plurality of transport packets to generate a source packet; a detector configured to detect transport packets containing entry points from among said transport packets; a map generator configured to generate an entry point map listing transport packet positions containing the detected entry points; and a record section configured to record a predetermined number of said source packets to said data recording medium as aligned units, and to record said entry point map to said recording medium, wherein the data length of said aligned units is equivalent to 6144 bytes, and wherein said transport stream recording device further comprises a deletion section configured to erase a range of said transport streams recorded on said data recording medium such that when the range specified for erasure terminates at a position within boundaries of a particular aligned unit, any data within the particular aligned unit is maintained and all other data inside the range is erased.