Method for real time recording/playback of data to/from an optical recording medium and method for managing files thereof

A system for recording real time data, comprising:

• a recording/reproducing device configured to record or reproduce a real time data on or from a recording medium, the recording/reproducing device being configured to
• read a defect list about a defective area prior to recording the real time data,
• transmit the defect list through an interface prior to recording the real time data,
• receive a write command through the interface,
• write the real time data according to the write command, and
• write a file information at a specific area of the recording medium, the file information including a size information for specifying a size of the real time data written in each data area divided with respect to defective areas and a location information specifying a location of each of the divided data areas;
• and
• a host device, operatively coupled to the recording/reproducing device through the interface, to control the recording/reproducing device, the host device being configured to issue the write command such that specified defective areas listed in the defect list are not allocated to the real time data to be written, in response to the defect list received from the recording/reproducing device prior to issuing the write command.