A DVD recording style; the laser pick-up moves at the same speed over the disc surface, from the center towards the exterior-margin. With every rotation, no matter its diameter, the same amount of information is written.
Constant Angular Velocity is a term describing how a media disk rotates throughout playing. The motor speed of the media player stays the same throughout the path of the read / write head.
(CAV) An unchanging speed of rotation. Hard disks use a constant angular velocity encoding scheme, where the disk rotates at a constant rate. This means that sectors on the disk are at the maximum density along the inside track of the disk; as the read/write heads move outwords, the sectors must spread out to cover the increased track circumference , and therefore the data transfer rate falls off.
Refers to the way in which a CD operates. CAV means that the CD spins at the same speed no matter where the information is being read. This produces faster transfer rates along the out tracks of a CD.
A term that describes the constant rotational speed of a disk media. CAV drives do not vary the speed of the spindle, which results in a constant speed of rotation. However, because the rotational speed is not varied, this means that the linear velocity (the rate at which media is passing under the head) is varied, depending on where the head is positioned. Hard disk drives use CAV in conjunction with Zoned-Bit Recording to maximize efficiency.
Constant angular velocity (CAV) describes the motion of a body rotating at a constant angular velocity, because as it rotates it moves through a constant angle per unit time. CAV is one method of writing or reading information from a rotating data disc.