There is realized a cassette (41a,41b) with a memory (MIC) in which the writing time is short, it can be accessed in a short time, and there is no need to provide an apparatus side of a main body with an additional memory. The memory (MIC) comprises an EEPROM (SPACE 0) to store fundamental data such as table of contents (TOC) information or the like, and a large capacity memory (SPACE 1), for example, flash memory, to store data.