Data processing apparatus and data recording apparatus

A data recording apparatus for rearranging digital information data in an order different from the original order and for recording the rearranged digital information data into a tape-shaped recording medium, comprising:

• a data accumulation memory for accumulating digital information data;
• a shuffling table memory for storing a shuffling table, for receiving positional information indicating the position of a data unit in an input-data sequence as an address, and for outputting a write or read address of said data accumulation memory by converting the positional information according to the shuffling table;
• means for storing a shuffling table selected from a plurality of shuffling tables in said shuffling table memory;
• an error correcting encoder for applying error-correcting-code encoding to at least one of the input data and the output data of said data accumulation memory;
• and
• recording means for recording the data error-correcting encoded by said error correcting encoder into the tape-shaped recording medium.