DESC: Magneto-optical recording is more commonly used as a rewritable technology. One of MO's major advantages is that it can be rewritten repeatedly without significant damage to the disk. Having been the leader in 5.25-inch MO technology for over ten years, Sony proudly presents the latest in its MO drive line-up, with the highest performance and more reliability than ever.??The SMO-S551 is ideal for data intensive applications such as document imaging, CAD/CAM, graphic design and database processing.