Wikipedia / Digital Tape Format
Wikipedia / 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".
Generations
Generation | DTF-1 | DTF-2 |
Release Date | 1994 | 1999 |
"S" Capacity (GB) | 12 | 60 |
"L" Capacity (GB) | 42 | 200 |
Max Speed (MB/s) | 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.
External links
ECMA 248 Specification of DTF-1. https://ecma-international.org/wp-content/uploads/ECMA-248_2nd_edition_june_1998.pdf
ECMA 315 Specification of DTF-2. https://ecma-international.org/wp-content/uploads/ECMA-315_1st_edition_december_2000.pdf