SONY CD-RW 4X-10X COMPATIBLE FOR HIGH SPEED DRIVES ULTRA SLIM CASE 650MB 74 MIN CD REWRITABLE DISC Record and rewrite up to 1000 times with Sony's High Speed CDRW media. With the ability to be rewritten Sony's CDRW media is suitable for graphic applications, multimedia and backup. Recording may also be difficult if the pickup lens is dirty or if laser