A disc has a first area for recording musical data and a second area for recording information (first-area recorded-content information) related to the content of what is recorded in the first area. In each block constituting the second area, a character code of the block and language codes of all blocks are recorded in addition to the first-area recorded-content information. The disc is loaded into a disc player. When a system controller in the disc player reads the first-area recorded-content information from a designated block and displays it, the system controller counts and saves a read count corresponding to the language code of the block. When a new disc is played back, first-area recorded-content information is read from a block having a language code which has the maximum count and displayed in a language corresponding to the language code.