1.
optical disc
A storage medium read and written with a laser, such as a CD, DVD, or Blu-ray disc. Data is recorded as pits on a reflective surface.
データを光学ディスクに保存する。
I save the data on an optical disc.
古い光学ディスクが読み込めなくなった。
The old optical disc can no longer be read.
CDやDVDは光学ディスクの一種で、レーザーで情報を読み取る。
CDs and DVDs are a kind of optical disc, and a laser reads the information off them.
Formed from 光学 (optics, optical) + ディスク (disc). The umbrella term for laser-read media such as CD, DVD, and Blu-ray.
COMMON COLLOCATIONS:
- 光学ディスクドライブ: optical disc drive
- 光学ディスクに書き込む: to write to an optical disc
SIMILAR WORDS:
- ハードディスク: hard disk — a magnetic storage device, not read by laser
- 記録メディア: recording media — a broader term covering discs, drives, and memory cards alike