Abstract: A picture recording apparatus which can record a picture on a write-once medium having an element which specifies a first size on a recording area assigned to data saving in edit processing, and an element which subtracts the first size from a remaining amount of recording area in the write-once medium to calculate a second size secured for recording, characterized in that a recording size is managed using the second size as an upper limit of a recordable size, and that an editing area is secured using the first size as a lower limit.

Abstract: A picture recording apparatus which can record a picture on a write-once medium having an element which specifies a first size on a recording area assigned to data saving in edit processing, and an element which subtracts the first size from a remaining amount of recording area in the write-once medium to calculate a second size secured for recording, characterized in that a recording size is managed using the second size as an upper limit of a recordable size, and that an editing area is secured using the first size as a lower limit.

Abstract: A DVD-R disc which is unusable due to a mechanical error in use can be reused. Recording zones 0 to 2 are sequentially formed from the lead-in side to the lead-out side on the DVD-R disc. When an ECC error occurs due to mechanical damage generated during recording picture information 3 in zone 2 in a DVD-VR format, the readable normal latest log information of log information 2 in zone 1 and log information 1 in zone 0 is moved to the end of zone 2 in which the damage is repaired. After that, recording can be executed in zone 3 next to zone 2.