引用:
原帖由 zhangjingy 于 2006-9-5 12:24 发表
DVD采用的读取技术是恒定角速度(CAV),即传输率在读取过程中会发生变化。XO的12xdvd光驱只有在读取外圈15%的数据时候能达到12x,这是理论峰值,越接近内圈速度越低,最内圈速度大约是5x,平均起来XO的光驱实际读 ...
http://www.gamespot.com/pages/pr ... 69&user=skektek
learn it yourself, if you understand English
ok, I do you a favor, here's the most important conclusion,
At 2x Blu-ray can read as fast as 12x DVD's minimum read speed. At just
3x Blu-ray is comparable to DVD at 12x; through the first half of the
disc 3x Blu-ray is faster, through the second half of the disc 12x DVD
is faster.
And at only 4x Blu-ray manages to best a 12x DVD's maximum read speed
by 9%.
I'll translate this post after work~