| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | cd rom | Western countries | CD-ROMs were popular storage media for software and data in the late 20th century. | 1 |
| 2 | cd-rom | Western countries | Commonly used for software installation and data storage | 1 |
| 3 | dvd | Western countries | Common format for watching movies and TV shows at home, particularly before the rise of digital streaming services. | 1 |
| 4 | dvd | Western countries | DVDs are becoming obsolete with the rise of streaming services and digital downloads. | 1 |
| 5 | dvd player | Western countries | Common household item in the 2000s, gradually being replaced by streaming services. | 1 |