optical disc

noun

variants or optical disk
plural optical discs or optical disks
: a disk with a plastic coating on which information (such as music, visual images, or computer data) is recorded digitally (as in the form of tiny pits) and which is read by using a laser
The PS5 is available in two versions. … At this point, people are happy to get their hands on either one, but if you don't have a library of optical discs—for Blu-ray movies, used games or old PS4 games—CNET recommends that you go with the $400 version.Dave Johnson

Examples of optical disc in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
For the MacBook Air and other modern Macs that needed to read or burn optical discs, that clunky accessory was Apple's SuperDrive, an external DVD burner that connected via USB. Andrew Cunningham, Ars Technica, 7 Aug. 2024 But as physical media gets less lucrative and the shuttering of businesses makes optical discs harder to find, the streaming services that largely replaced them are getting aggravating and unreliable. Scharon Harding, Ars Technica, 11 July 2024 During the search, investigators seized two computers, a hard drive, an iPad and iPhone and 28 optical discs. Justin Muszynski, Hartford Courant, 4 July 2024 It should also be noted that Sony is rumored to be working on a new PlayStation handheld that also runs games locally—a successor to the classic PlayStation Portable or PSP, which ran games off a little optical disc called the Universal Media Disc, and was available between 2004 and 2014. Ryan Hogg, Fortune, 10 June 2024 Contrast that to CDs, which digitally encode audio files onto optical discs that are translated back into sound via laser scanning. Andrew Paul, Popular Science, 27 Mar. 2024 Now scientists in China have developed a way to encode data on 100 layers in optical discs. IEEE Spectrum, 23 Feb. 2024 Previously, scientists investigated encoding data on optical discs in many layers in three dimensions to boost their capacity. IEEE Spectrum, 23 Feb. 2024 When the format was being designed in the 1980s, optical discs were the obvious storage media because of their ability to store millions of bytes of data (many minutes of music) at low cost. Ramon Padilla, USA TODAY, 18 Mar. 2023

Word History

First Known Use

1957, in the meaning defined above

Time Traveler
The first known use of optical disc was in 1957

Dictionary Entries Near optical disc

Cite this Entry

“Optical disc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optical%20disc. Accessed 5 Nov. 2024.

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