promotion image of download ymail app
Promoted
Wendy 發問於 電腦及互聯網軟體 · 10 年前

computer

As you know, a DVD disc could have its capacity maximized when it is in double-layer, double-side. Why do we rarely see such discs selling in the market? Suggest two

1 個解答

評分
  • Lee
    Lv 7
    10 年前
    最愛解答

    Is it a homework?

    (1)Double sided and double layered disc are expensive to manufacture. Moreover, due to DVD's fixed resolution at 720x480, extra storage doesn't improve the picture quality much, can only improve compression loss, or lengthen movie time. So the market don't have a big demand on it.

    (2)To achive better quality video disc, there is already an alternative, blu-ray disc. Therefore, making limited improvement to a decade-old DVD standard less attractive.

    • Commenter avatar登入以回覆解答
還有問題嗎?立即提問即可得到解答。