Method and apparatus for reproducing data from recording medium using local storage

An apparatus for reproducing data of a recording medium using a local storage, comprising:

• a recording/reproducing unit for reading original data from the recording medium;
• a local storage for downloading additional data associated with the recording medium from an external part, and storing the downloaded additional data;
• a selection unit for selecting the original data or the additional data, and selecting a decoding path of the selected original data or a decoding path of the selected additional data;
• and
• a decoder for including at least two decoding paths, and performing a decoding operation according to the selected data and the selected decoding path of the selection unit.

A method for reproducing data of a recording medium using a local storage, comprising the steps of:

• (a) reading a binding unit associated with a loaded recording medium from the local storage;
• (b) performing a binding operation for combining the binding unit with a file structure contained in the recording medium, and forming a virtual package in which a playlist file including a main path and a sub-path is contained;
• and
• (c) separating a first path capable of decoding a stream of the main path from the playlist file, separating a second path capable of decoding a stream of the sub-path from the playlist file, and decoding the first path and the second path in different ways.

A method for reproducing data of a recording medium using a local storage, comprising the steps of:

• (a) reading original data from a recording medium;
• (b) downloading additional data associated with the recording medium from an external part, and storing the downloaded additional data;
• (c) selecting the original data or the additional data, and selecting a decoding path of the selected original data or a decoding path of the selected additional data;
• and
• (d) performing a decoding operation according to the selected data and the selected decoding path.