HP Compaq Presario,Presario V4000 Maintenance And Service Manual page 194

Specifications
Applicable disc
Center hole diameter 1.5 cm (0.59 in)
Disc diameter
Standard disc
Mini disc
Disc thickness
Track pitch
6–8
Table 6-6
DVD-ROM Drive
DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18)
CD-ROM (Mode 1 and 2)
CD Digital Audio
CD-XA ready (Mode 2, Form 1 and 2)
CD-I ready (Mode 2, Form 1 and 2)
CD-RCD-RW Photo CD (single and multisession)
CD-Bridge
12 cm (4.72 in)
8 cm (3.15 in)
1.2 mm (0.047 in)
0.74 µm
Maintenance and Service Guide