There is realized a cassette with a memory in which the writing time is short, it can be accessed in a short time, and there is no need to provide an additional memory to the apparatus side of the main body. As for a memory of a cassette with a memory, a memory to store fundamental data such as table of contents (TOC) information or the like is constructed by an electrically erasable programmable read only memory (EEPROM) and a memory to store data is constructed by a large capacity memory (for example, flash memory).