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

A method for forming a virtual package comprising the steps of:

• a) downloading an additional data file and a binding unit manifest file, and storing the additional data file and the binding unit manifest file in the local storage;
• b) determining a binding unit from among the downloaded additional data file according to the binding unit manifest file;
• c) performing a binding operation for binding the binding unit with an original data file contained in the recording medium according to the binding unit manifest file, and forming a virtual package;
• and
• d) allowing the binding unit manifest file to include an additional data file name mapped to the virtual package, and forming the virtual package using the additional data file when the additional data file name is equal to an original data file name.

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

• a pickup unit for reading original data from the recording medium;
• a local storage for storing additional data associated with the original data and a binding unit manifest file;
• and
• a controller for determining a binding unit from among the additional data according to the binding unit manifest file, performing a binding operation for binding the binding unit with an original data file according to the binding unit manifest file, forming a virtual package, and reproducing additional data and original data using the formed virtual package.