DVD技术参数（国外英文资料）.docVIP

DVD技术参数（国外英文资料） DVD technical parameters detail There are a lot of DVD drives and DVDS on the world right now, and many customers are buying and buying innovative DV products. There are always some questions when using a DVD recording system. For example, why do I choose to buy DVDS that I cant burn? Or why the cd-rom cannot be played on DVD. Heres a look at some of the technical parameters of the DVD. Five sizes of DVD drives A, DVD - R and DVD RW DVD - R is a multi-read, and DVD - AUDIO, dvd-rom compatible, and the latest 1.0 specification is 3.95 GB, and the DAO can also be written to DVD - R. But I need the read/write head with high precision, because DVD - R gauge only 0.8 um, cd-r, shortest signal pit is only 0.293 um, about 1/3 of the cd-r, after the third generation DVD cd-rom can be read. The DVD - R film USES the organic pigment membrane, so it looks purple and can be absorbed by a laser light of 356NM wavelengths. Table 4 is the comparison between the DVD and the cd-r: - DVD - R cd-r Read and write and read and write Laser wavelength writing: 630 ~ 640nm: 775 ~ 795nm play: 630 ~ 660nm: 770 ~ 830nm Power 4 ~ 11nW The gauge is 0.293 0.843 The shortest information pit was 0.293 0.843 Change mode 8-16 EFM The baseline velocity is 3.84 M/S 1.2 M/S The capacity is 3.95 GB 0.682 GB Second, the DVD - RAM DVD - RAM is read and read on DVD, can be read by DVDROM, and the third generation can be read smoothly. The differences in specifications are mainly table 5: DVD cd-rom DVD - RAM The flat capacity is 4.7 GB 2.6 GB The baseline velocity CLV, 3.5 M/S 6M/S Data transmission speed 11.08 Mbps 11.08 Mbps Base plate thickness 2 0.6 mm glue 2 0.6 mm glue The gauge is 0.265 nm 0.41 nm The shortest record label is 0.6 nm 0.4 nm Spin control CLV/ZCLV There is no error management function There is no single surface for the film, neither side is allowed File system ISO9600 / UDF DVD - RAM adopt ZCLV like general CLV is not, is to put the film into several segments like c