Data reproduction apparatus and reproduction method

A data reproduction apparatus comprising:

• a reproduction means for reproducing a data stored in a recording medium;
• a first data information detection means for detecting a first piece of data information proving the rightness or wrongness of reproducing the data as signal, using the address information of the data reproduced by said reproduction means;
• a memory means for storing the data;
• an error correction means for performing an error detecting/error correcting operation on each of the data proved for the rightness of being reproduced as signal by said first piece of data information and storing the data back in said memory means after the error correcting operation;
• a second data information detection means for detecting a second piece of data information indicating a data to be reproduced as signal among the data subjected to the error correcting operation of said error correction means;
• a decoding means for decoding the data subjected to the error correcting operation of said error correction means and stored back in said memory means as reproduced signal;
• and
• a control means for controlling the data output from said memory means to said decoding means by referring to the first piece of data information detected by said first data information detection means and the second piece of data information detected by said second data information detection means,
• wherein said second piece of data information corresponds to a navigation pack.