HP Pavilion 7700 HP Pavilion PC's - (English) Philips CDD-4801 CD-RW User's Ma - Page 26

01_LAYOUT_GB 22-11-2000 09:21 Pagina 20 CDRW APPENDIX (CONT.) ENGLISH • Onto this a special greenish tinged translucent layer is applied. The substrate has already been provided with a preformed track spiral into which the data will be written during recording. • On top of the green recording layer is a reflective gold layer and a protective layer of plastic material. The additional CD-R/RW area of a CD-R and -RW disc The additional CD-R/RW area is divided into two areas: • The Program Memory Area (PMA) which mainly contains the track numbers of the tracks recorded with respective start and stop points. • The Program Calibration Area (PCA). Disc space for the CD writer to calibrate the laser energy needed for recording on the disc via a trial recording. A CROSS-SECTION THROUGH A BLANK CD-R OR -RW DISC. Next to the centre hole is an area for the mechanical clamping of the disc in the player. Adjacent to this is the unrecorded area of the blank CD-R or -RW disc. 22.35 mm 7.5 mm max. 60 mm max. 59 mm Centre Area hole for mechanical clamping Blank area for recording 20