POPMusic 版 (精华区)
作 家: pcy (po) on board 'Music'
题 目: DVD 技术参数表
来 源: 哈尔滨紫丁香站
日 期: Wed Aug 27 13:32:32 1997
出 处: bbs@bbs.orange.sjtu.edu.cn
发信人: howe (无痕), 信区: HiFi
标 题: DVD 技术参数表
发信站: 饮水思源站 (Sat Aug 9 00:12:09 1997) , 转信
标 题: DVD 技术参数表
发信站: 武汉白云黄鹤站 (Sat Aug 2 05:35:37 1997) , 站内信件
CD DVD
Disc diameter 120 mm 120 mm
Disc 1.2 mm 1.2 mm
thickness
Disc Two bonded
structure Single substrate 0.6 mm substrates
Laser 780 nm 650 and 635 nm
wavelength (infrared) (red)
Numerical
aperture 0.45 0.60
Track pitch 1.6 um 0.74 um
Shortest
pit/land 0.83 um 0.4 um
length
Data layers 1 1 or 2
Single layer: xxxx
Data capacity Aprox. 680 4.7GB x 2
megabytes Dual layer: xxx x
8.5GB x 2
Reference Mode 1: 153.6 1,108
user data kilobytes/sec kilobytes/sec,
rate Mode 2: 176.4 nominal
kilobytes/sec
Video CD DVD-Video
1.44 1 to 10 megabits/sec
Video data megabits/sec variable
rate (video, (video, audio,
audio) subtitles)
Video
compression MPEG1 MPEG2
Mandatory (NTSC):
2-channel linear PCM
and/or
Sound tracks 2 2-channel/5.1-channel
Channel-MPEG Dolby Digital (AC-3).
Optional:
up to 8 streams of data
available
Subtitles Open caption Up to 32 languages
only
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※ 来源:·武汉白云黄鹤站 s1000e.whnet.edu.cn·[FROM: bbs.sjtu.edu.cn]
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※ 来源:·饮水思源站 bbs.sjtu.edu.cn·[FROM: bbs@s1000e.whnet.edu]
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※ 来源:·哈尔滨紫丁香站 bbs1.hit.edu.cn·[FROM: bbs@bbs.orange.sjtu.]
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