A method of receiving a broadcasting signal in an apparatus for receiving the broadcasting signal, is disclosed. The method includes receiving a first encoding data descriptor describing first encoding data of contents having the first encoding data and second encoding data, in non-real time, receiving the first encoding data in non-real time, according to the first encoding data descriptor, and decoding the first encoding data received in non-real time and the second encoding data received in real time together, according to the first encoding data descriptor, and outputting the contents.