Advanced Digital Recording

Advanced Digital Recording (ADR) is a magnetic tape data storage format developed by OnStream from 1998 to 2003. Since the demise of OnStream, the format has been orphaned. ADR is an 8-track, linear tape format.

## Generations

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Generation  | ADR 30  | ADR 50  | ADR 2.60  | ADR 2.120

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Release Date  | 1999  | 1999  | 2001  | 2001
Data Capacity  | 15 GB  | 25 GB  | 30 GB  | 60 GB
Transfer Rate (MB/s)  | 2  | 2  | 4  | 4
Tape Length (m)  |  |  |  |

## Compatibility

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The drive models for ADR 120 GB tapes can use both the ADR 60 GB and the ADR 120 GB tapes, while the 50 GB drives can use both ADR 30 GB and ADR 50 GB tapes.[1]

## References

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1. ^ "Table 12.5 "OnStream ADR2 Family Specifications for Windows PCs" Chapter 12" (PDF). pp. 686–687. Retrieved 2020-04-12.

## External links

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* Table of ADR formats.
* The tribology of advanced digital recording (ADR) systems(Subscription required)
* Future directions in advanced digital recording technology (Subscription required)
* Image of ADR cartridge

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Magnetic-tape data storage formats

Linear|

| Wide (19–25.4 mm)|

* IBM 7340 (1961)
* LINCtape (1962)
* DECtape (1963)
* CDC 626 (1966)

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Half inch (12.7 mm)|

* UNISERVO (1951)
* IBM 7-track (1952)
* TX-2 Tape System (1958)
* 9-track (1964)
* IBM 3480 (1984)
* DLT (1984)
* IBM 3590 (1995)
* T9840 (1998)
* T9940 (2000)
* LTO Ultrium (2000)
* IBM 3592 (2003)
* T10000 (2006)

Eight millimeter (8 mm)|

* Travan (1995)
* IBM 3570 MP (1997)
* ADR (1999)

Quarter inch (6.35 mm)|

* QIC (1972)
* SLR (1986)
* Ditto (1992)

"Eighth" (0.15) inch (3.81 mm)|

* D/CAS (1971)
* KC standard, Compact Cassette (1975)
* DC100 (1976)
* Tarbell Cassette Interface (1976)
* Commodore Datasette (1977)
* DECtape II (1979)
* IBM PC Cassette (1981)

Stringy (1.58–1.9 mm)|

* Exatron Stringy Floppy (1979)
* ZX Microdrive (1983)
* QL Microdrive (1984)
* Rotronics Wafadrive (1984)

Helical|

| Three quarter inch (19 mm)|

* Sony DIR (19xx)
* Ampex DST (1992)

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Half inch (12.7 mm)|

* ArVid (1992)
* Redwood SD-3 (1995)
* DTF (19xx)
* SAIT (2003)

Eight millimeter (8 mm)|

* Data8 (1987)
* Mammoth (1994)
* AIT (1996)
* VXA (1999)

Four millimeter (3.81 mm)|

* DDS/DAT (1989)

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