A method of recording realtime data and a realtime data recording apparatus

摘要

Realtime data is recorded on a disc at a unit of cluster including successive sectors. When an error occurs in recording, the realtime data to be recorded in one cluster is relocated at another cluster, wherein successive sectors in each cluster are physically nearly arranged, so that movement of head is reduced when an error occurs and realtime data is recorded without losing the realtime data and without waiting. The area recording medium may be scanned to detect an error in recording during an idle interval. The idle interval is detected in accordance with the request interval of storing or reproducing and writing and reading execution time. A bit map table for storing used status and defect status may be recorded on the area recording medium. Logical sector address in a sector may be converted into a physical sector address such that sectors indicated by the physical sector address converted from the logical sector address in a cluster are physically nearly located on the area recording medium.