Compact-Disc
| System
| Compact Discs | |
| patents. | discos compactos |
| System | |
| comp., MS | sistema |
| earth.sc. mech.eng. | sistema |
| |||
| discos compactos | |||
|
Compact-Disc : 12 phrases in 4 subjects |
| Communications | 1 |
| Information technology | 2 |
| Patents | 4 |
| Sound recording | 5 |