Apparatus and method of reproducing multimedia data referencing a virtual file system

Combining directory information of the data downloaded over the network and the directory information relating to the data recorded on the information storage medium by creating a virtual file system, thereby it is disclosed a method and apparatus for reproducing multimedia data. According to the invention, the multimedia data reproducing apparatus includes a local storage storing data downloaded over the network; Reading out the data and the data stored in the local storage are stored in the information storage medium reading unit; And the data stored in the data and the data storage medium to create a virtual file system, with reference to the virtual file system created is stored in the local storage is referenced in order to access all the data stored in the data and the information storage medium is stored in the local storage, It characterized in that it comprises a play to connect to play. This makes it possible to create applications that access the data stored in any location without the need to distinguish between the local storage and the data storage medium easily, and thus can facilitate additional content.