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Restore Original Sort Order Thumbnail Genre(s) ProcessType Carrier Type Medium Type Name of Holotype Product name Product Code Manufacturer Required Device(s) Height Width Diameter Depth Standards Market Running Length Range Distinguishing Features Date Production Started Date Production Stopped Assessment Summary Process Materials Marketed Capacity/Extent Life: Community Life: Manufacturer Remarks Status UserName_Modified Date_Modified
1 Still Image Moving Image magnetic disk cartridge floppy disk 2” Video Floppy Disk Canon Video Floppy Disk VF-50 Disk VF-50 Canon 2” Video Floppy Disk reader 54 mm 60 mm 3 mm Sony Professional 1988 Digital Preservation assistance required for transfer from existing media to the managed digital storage system. (modest effort) 25 / 50 images VF was not a digital data format; each track on the disk stored one video field in the analogue interlaced composite video format in either the North American NTSC or European PAL standard. This yielded a capacity of 25 images per disk in frame mode and 50 in field mode. Douglas Elford-NLA 01/09/2011
2 79A-- Variant of 797 made for government use only 797-79A Ampex Professional Variant of 797 made for government use only Uncatalogued Douglas Elford-NLA 02/06/2009
3 Still Image photo chemical tin negative/positive silver collodion emulsion Tintype Tintype Unknown various various various Professional Positive photographic image on tin. ~ 1855 ~ 1945 collodion (cellulose nitrate, alcohol, ether, silver nitrate)or albumen emulsion / tin / varnish Two layer structure, nitric acid or bichloride of mercury bleached collodion or gelatin emulsion on blackened tinned iron, often varnished. Also known as a ferrotype or mela Douglas Elford-NLA 15/09/2009
4 Data photo chemical glass negative/positive silver collodion emulsion Ambrotype Ambrotype Unknown various various various Professional Case containing positive non-reflective photographic image on glass. 1851 ~ 1880 collodion (cellulose nitrate, alcohol, ether, silver nitrate) / paint / glass / wood / paper / metal 150+ years Two layer structure, nitric acid or bichloride of mercury bleached collodion emulsion on black japaned glass or blackened backing. Douglas Elford-NLA 15/09/2009
5 Still Image photo chemical glass negative silver collodion emulsion Wet-collodion negative Wet-collodion negative Unknown various various various Professional Negative photographic image on glass. Often slightly yellow in hue and variations in the amount of emulsion around the edges. 1851 ~ 1945 collodion (cellulose nitrate, alcohol, ether, silver nitrate) / glass 150+ years Two layer structure, collodion emulsion on glass Douglas Elford-NLA 15/09/2009
6 Moving Image magnetic tape cassette ½” VHS format analogue television tape, Standard cassette tape 199-- VHS videocassette 199 Ampex 103 mm 187 mm 25 mm IBTN/EBU: VHS Professional 1990s - early ? to some time between 1990 and 1995 Uncatalogued Douglas Elford-NLA 02/06/2009
7 Sound magnetic tape reel 1/4" open reel 6.3 mm (1/4") analogue audio tape, Full track Quantegy Standard Play Audio Tape 406 Quantegy audio tape recorder appropriate to band width 6.3 mm IBTN/EBU: A01 Professional Polyester
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
8 Sound magnetic tape reel ½” open reel Open reel audio tape Quantegy Standard Play Audio Tape 406 Quantegy audio tape recorder appropriate to band width 178 mm 12.5 mm Professional Polyester
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
9 Sound magnetic tape reel 1" open reel 25.4 mm (1") analogue audio tape, 16 channel Quantegy Standard Play Audio Tape 406 Quantegy audio tape recorder appropriate to band width 25.4 mm IBTN/EBU: A16 Professional Polyester
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
10 Sound magnetic tape reel 1/4" open reel 6.3 mm (1/4") analogue audio tape, Full track Quantegy Long Play Audio Tape 407 Quantegy audio tape recorder appropriate to band width 6.3 mm IBTN/EBU: A01 Professional Polyester
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
11 Sound magnetic tape reel ½” open reel Open reel audio tape Quantegy Long Play Audio Tape 407 Quantegy audio tape recorder appropriate to band width 178 mm 12.5 mm Professional Polyester
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
12 Sound magnetic tape reel 1/4" open reel 6.3 mm (1/4") analogue audio tape, Full track Quantegy Standard Play Audio Tape 456 Quantegy audio tape recorder appropriate to band width 6.3 mm IBTN/EBU: A01 Professional
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
13 Sound magnetic tape reel ½” open reel Open reel audio tape Quantegy Standard Play Audio Tape 456 Quantegy audio tape recorder appropriate to band width 178 mm 12.5 mm Professional
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
14 Sound magnetic tape reel 1" open reel 25.4 mm (1") analogue audio tape, 16 channel Quantegy Standard Play Audio Tape 456 Quantegy audio tape recorder appropriate to band width 25.4 mm IBTN/EBU: A16 Professional
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
15 Sound magnetic tape reel 2" open reel 50.8 mm (2") analogue audio tape, 24 channel
2500’/762m > 500’/1524m
Quantegy Standard Play Audio Tape 456 Quantegy audio tape recorder appropriate to band width 10.5” 50.8 mm IBTN/EBU: Professional
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
16 Sound magnetic tape reel 1/4" open reel 6.3 mm (1/4") analogue audio tape, Full track Quantegy Master Audio Tape 457 Quantegy ¼” audio tape recorder 6.3 mm IBTN/EBU: A01 Professional
This tape is vulnerable to be sticky. Douglas Elford-NLA 28/07/2015
17 Sound magnetic tape reel ½” open reel Open reel audio tape Scotch Audio Tape 112 3M - Scotch 178 mm 12.5 mm Professional 1948 tape for Ampex 200A
Douglas Elford-NLA 29/07/2015
18 Data magnetic tape cassette 1/4" cartridge 5 ¼” Data Cartridge Magnus 1.2 5 ¼” Data Cartridge SLR SLR3
51111 46165 3M / Imation SLR3, SLR4 & SLR5 drives for R / W 102 mm 153 mm 17 mm Professional m (950 ft) External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR3 1.2 Gb

20+ years tape durability 5000 passes Douglas Elford-NLA 04/08/2011
19 Data magnetic tape cassette 1/4" (6.3 mm) / 8 mm later variants 5 ¼” Data Cartridge: SLR Data Cartridge SLR6-24GB Data Cartridge SLR24
0-51122-12725-0 3M - Scotch - Imation SLR 24, SLR 50 drive R / W
SLR60, SLR 75 SLR 100 drive R only
110 mm 152 mm 16 mm Tanberg Data Professional 345 m External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR6 12 Gb uncompressed
24 Gb compressed
20 years Tape Durability 15,000 passes
preformatted system
Douglas Elford-NLA 04/08/2011
20 Data magnetic tape cassette 1/4" (6.3 mm) / 8 mm later variants 5 ¼” Data Cartridge: SLR Data Cartridge SLR75 Data Cartridge
0-51122-16838-3 3M - Scotch - Imation SLR60, SLR75,SLR100 and SLR140 drives R / W 110 mm 152 mm 16 mm Tanberg Data Professional 350.5 m External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR75 38 Gb uncompressed
75 Gb compressed
10 years Tape Durability 10,000 passes
Preformatted system
Douglas Elford-NLA 04/08/2011
21 Data magnetic tape cassette 1/4" (6.3 mm) / 8 mm later variants 5 ¼” Data Cartridge: SLR Data Cartridge SLR60 Data Cartridge
0-51122-41115-1 3M - Scotch - Imation SLR60, SLR75, SLR100 and SLR140 R / W 110 mm 152 mm 16 mm Tanberg Data Professional 274 m(900 ft) External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR60 30 Gb uncompressed
60 Gb compressed
20 years Tape Durability 10,000 passes
preformatted system
Douglas Elford-NLA 04/08/2011
22 Data magnetic tape cassette 1/4" (6.3 mm) / 8 mm later variants 5 ¼” Data Cartridge: SLR Data Cartridge SLR7 Data Cartridge
0-51122-41461-9 3M - Scotch - Imation SLR7 drive R / W
SLR60, SLR75, SLR100 and SLR140 RO
110 mm 152 mm 16 mm Tanberg Data Professional 1530 ft External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR7 20 Gb uncompressed
40 Gb compressed
20+ years Tape Durability 10,000 passes
Douglas Elford-NLA 04/08/2011
23 Data magnetic tape cassette 1/4" (6.3 mm) / 8 mm later variants 5 ¼” Data Cartridge: SLR Data Cartridge SLR100 Data Cartridge
0-51122-41069-7 3M - Scotch - Imation SLR 100 & SLR140 drives 110 mm 152 mm 16 mm Tanberg Data Professional 457 m (1500 ft) External Third party conversion to Normalised format(s); at an additional cost to organisation. (considerable effort) SLR100 50 Gb uncompressed
100 Gb compressed
20+ years Tape Durability 10,000 passes Douglas Elford-NLA 04/08/2011
24 Moving Image magnetic tape cassette 3/4 in cartridge U-matic format analogue television tape, Small cassette 187-- U-Matic videocassette 187 Ampex 140 mm 220 mm 31 mm IBTN/EBU: UMS Professional Sometimes this is labelled KCA-xx where xx indicates running time Uncatalogued Douglas Elford-NLA 02/06/2009
25 021-- 1 mil rejected acetate tape 021 Ampex Professional 1960s - early sold as Shamrock Uncatalogued Douglas Elford-NLA 29/07/2015
 
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