Digital Tape Format
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 (adopted June 1998) and ISO/IEC 15731 standards. There are two sizes of tape cassettes, "S" and "L".
Generation DTF-1 DTF-2 Release Date 199? 1999 "S" Capacity (GB) 12 42 "L" Capacity (GB) 60 200 Max Speed (MB/s) 12 24
- Both used ALDC compression
- DTF-2 used Fibre Channel or SCSI interfaces
- The tape cassettes are similar to those of Sony Betacam.
- ECMA 248 Specification of DTF-1. 
- ECMA 315 Specification of DTF-2. 
- Brochure for DTF-1 drive with specs
- DTF at the Computer Desktop Encyclopedia, including images
Magnetic tape data storage formats Linear Three quarter inch (19 mm) Half inch (12.7 mm) Eight millimeter (8 mm) Quarter inch (6.35 mm) "Eighth" (0.15) inch (3.81 mm) Stringy (1.58–1.9 mm) Helical Three quarter inch (19 mm) Half inch (12.7 mm) Eight millimeter (8 mm) Four millimeter (3.81 mm)DDS/DAT (1989) This computer hardware article is a stub. You can help Wikipedia by expanding it. This computer storage-related article is a stub. You can help Wikipedia by expanding it.