Digital Tape Format
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Digital Tape Format is a magnetic [tape data storage] format developed by Sony. It uses a 1/2" wide tape, in a cassette with two reels, which is written and read with a helical scan process. The format is described by the ECMA 248 and ISO/IEC 15731 standards. There are two sizes of tape cassettes, "S" and "L".
Generations
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| Generation | DTF-1 | DTF-2 |
| Release Date | 1994 | 1999 |
| "S" Capacity | 12 | 60 |
| "L" Capacity | 42 | 200 |
| Max Speed | 12 | 24 |
Notes:
- Both used ALDC compression
- DTF-2 used Fibre Channel or SCSI interfaces
- The tape cassettes are similar to those of Sony Betacam.