| Subject | English | Italian |
| IT, dat.proc. | write once optical disk | disco ottico numerico |
| snd.rec. | Write Once Read Many | supporto registrabile una sola volta WARM |
| comp., MS | write once, read many | WORM (An optical disc that can be read and reread but cannot be altered after it has been recorded. WORMs are high-capacity storage devices. Because they cannot be erased and rerecorded, they are suited to storing archives and other large bodies of unchanging information) |
| gen. | Write Once Read Many | Disco ottico a registrazione e lettura multipla |