A perpendicular magnetic recording disk used in energy assisted magnetic recording drives is described. The circular shell 4 is configured by jointing side edges 7, 7 of at least two shell segments 4a, each having a single convex circumferential surface. A method to releaseably hold an ornamental object. The ASYNC module may also receive triggers from the analogmixed signal modules and selectively distribute them back to the digital modules or analogmixed signal modules. An area of the record carrier is selected as the temporary store, and the operating device starts consecutively overwriting storage of a recording information signal in the selected temporary store after the wait information, and stops a consecutively overwriting storage after the activation information. At least one line penetrates an opening of the heating kettle cover and is sealed by means of a sealing element.