D-1 (Sony)
| Sony DVR-2000 VCR | |
| Media type | Magnetic Tape, ¾-inch | 
|---|---|
| Encoding | NTSC, PAL | 
| Read mechanism | Helical scan | 
| Write mechanism | Helical scan | 
| Standard | Interlaced video | 
| Developed by | BTS/Sony | 
| Usage | Video production | 
| Released | 1986 | 
D-1 or 4:2:2 Component Digital is an SMPTE digital recording video standard, introduced in 1986 through efforts by SMPTE engineering committees. It started as a Sony and Bosch – BTS product and was the first major professional digital video format. SMPTE standardized the format within ITU-R 601 (orig. CCIR-601), also known as Rec. 601, which was derived from SMPTE 125M and EBU 3246-E standards.