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".

Generations

Notes:

• Both used ALDC compression
• DTF-2 used Fibre Channel or SCSI interfaces
• The tape cassettes are similar to those of Sony Betacam.