Sony Storage Support

Multisession simply implies that the CD has been burnt to more than once. Each time the user burns files or information to a disc, that is called a session. The principal purpose of multiple sessions is to allow additional data to be appended to a previously recorded disc. Technically, a session is defined as an area including lead-in, program data and lead-out. This is different than a pressed CD-ROM, where the information is written in a single session.