Constant Angular Velocity (CAV) Recording Technology

The CRW-5224A-U drive employs the Constant Angular Velocity (CAV) recording method. With CAV recording, the drive spindle motor rotates the disc at the same speed regardless of the radial position of the pickup head. This means that there is a higher transfer rate when writing data to the outer tracks of the disc than to the inner tracks, as the head traverses a longer linear path on the outer than the inner part of the disc.

Although the transfer rates vary, and may not be at maximum, depending on the part of the disc being written to, the CAV method allows faster recording speed because the rotation speed does not have to change when the head writes data to different areas of the disc. This is primarily advantageous for computer applications.

CAV Recording Method

Speed

52x

 

48x

 

40x

 

32x

 

24x

 

16x

 

8x

 

0x

Time

ASUS CRW-5224A-U User’s Manual

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