您要查找的是不是：
- 藍光光盤(pán)(Blu-ray Disc&HD-DVD)技術(shù)的發(fā)展The technical development of Blu-ray Disc & HD-DVD
- 一種帶有可磁化表層的扁平圓盤(pán),在其表層上可用磁記錄方式存儲數據。同magnetic disc。A flat circular plate with a magnetizable surface layer on which data can be stored by magnetic recording.
