Recording medium, method of creating file of the recording medium, and method and apparatus for reproducing the same

An apparatus for recording data on a recording medium including a plurality of recording layers, comprising:

• a recording unit configured to record data on the recording medium;
• and
• a controller configured to:
• control the recording unit to continuously record a stream data file within a first recording layer and a second recording layer among the plurality of recording layers, which are adjacent to one another,
• form a PlayList file so as to enable seamless playback of the recorded stream data file, the PlayList file including a first PlayItem having a presentation end time (OUT-Time) designating an end portion of the first recording layer and a second PlayItem having a presentation start time (IN-Time) designating a beginning portion of the second recording layer, and
• control the recording unit to record the PlayList on the recording medium,
• wherein the second PlayItem includes connection condition information indicating whether or not the stream data included in the second PlayItem is seamlessly reproduced with the stream data included in the first PlayItem, and
• a size of the stream data included in the first PlayItem is larger than a predetermined data size, the predetermined data size being decided in accordance with a response time of the recording unit depending upon a change in the recording layer.

A method of reproducing data from a recording medium including a plurality of recording layers, comprising:

• reading a PlayList file from the recording medium,
• wherein the PlayList file includes at least one PlayItem, in order to control playback of a stream data file, which is continuously recorded within a first recording layer and a second recording layer among the plurality of recording layers, which are adjacent to one another, the PlayList file including a first PlayItem having a presentation end time (OUT-Time) designating an end portion of the first recording layer and a second PlayItem having a presentation start time (IN-Time) designating a beginning portion of the second recording layer,
• wherein the second PlayItem includes connection condition information indicating whether or not the stream data included in the second PlayItem is seamlessly reproduced with the stream data included in the first PlayItem, and a size of the stream data included in the first PlayItem is larger than a predetermined data size, the predetermined data size being decided in accordance with a response time of a system depending upon a change in the recording layer;
• and
• performing seamless playback of the stream data recorded between the first recording layer and the second recording layer, based upon the read PlayList file.

An apparatus for reproducing data from a recording medium including a plurality of recording layers, comprising:

• a reading unit configured to read data from the recording medium;
• and
• a controller configured to:
• control the reading unit to read a PlayList file from the recording medium,
• wherein the PlayList file includes at least one PlayItem, in order to control playback of a stream data file, which is continuously recorded within a first recording layer and a second recording layer among the plurality of recording layers, which are adjacent to one another, the PlayList file including a first PlayItem having a presentation end time (OUT-Time) designating an end portion of the first recording layer and a second PlayItem having a presentation start time (IN-Time) designating a beginning portion of the second recording layer,
• wherein the second PlayItem includes connection condition information indicating whether or not the stream data included in the second PlayItem is seamlessly reproduced with the stream data included in the first PlayItem, and a size of the stream data included in the first PlayItem is larger than a predetermined data size, the predetermined data size being decided in accordance with a response time of the reading unit depending upon a change in the recording layer, and
• perform seamless playback of the stream data recorded between the first recording layer and the second recording layer, based upon the read PlayList file.