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Imaging Digital Media for Preservation with LAMMP

Imaging Digital Media for Preservation with LAMMP. Digital Scholarship services UCI Libraries libdss@uci.edu. X. The Problem. Valuable content on Digital Media Digital Media is INACCESSIBLE Hardware obsolescence Software obsolescence Digital Media is FRAGILE

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Imaging Digital Media for Preservation with LAMMP

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  1. Imaging Digital Media for Preservation with LAMMP Digital Scholarship services UCI Libraries libdss@uci.edu

  2. X

  3. The Problem • Valuable content on Digital Media • Digital Media is INACCESSIBLE • Hardware obsolescence • Software obsolescence • Digital Media is FRAGILE • Hardware failure/user error • Bit Rot: random bit-level corruption • Preservation tools too TECHNICAL “I Find Your Lack of Space Disturbing”, http://www.flickr.com/photos/nhussein/

  4. The Solution • Goal • Capture content from digital media carriers • Generate basic descriptive and technical metadata • Preserve for future appraisal and access Legacy Archival Media Migration Platform • Features • Low Cost • Customizable • Can be performed by non-technical user

  5. Digital Forensics • Disk Imaging • Bit-for-bit copy • Preserves structure, users, permissions • Allows for emulation • Write-Blocking • “Blocks” write access to original media • Hardware more reliable than software • Checksums • “Digital Fingerprint” of content file • d131dd02c5e6eec4 =/= d131dd02c5e68ec4

  6. LAMMP Workflow FTKImager ClamAV

  7. DiskMD.txt

  8. ContentMD.csv

  9. 5.25” Floppy Disks Beige Powermac G3 FC5025 USB controller • Apple DOS 3.2 (13-sector) • Apple DOS 3.3 (16-sector) • Apple ProDOS • Atari 810 • Calcomp Vistagraphics 4500 • Commodore 1541 • Kaypro 2 CP/M 2.2 • Kaypro 4 CP/M 2.2 • MS-DOS • Motorola VersaDOS • North Star MDS-A-D • PMC MicroMate • Tandy Color Computer Disk BASIC • TI-99/4A Write Protection 3.5”

  10. USB & ZIP CDs DVDS CDParanoia IMGBurn etc. WAV WAV WAV

  11. J. Hillis Miller Collection • 433 digital media items: • 140 3.5” floppies (PC HD) • 142 3.5” floppies (Mac DD) • 147 5.25” floppies • 3 logical directories (email) • 396 (91%)successfully imaged • Earliest Date Last Modified: April 9, 1983 Distinguished Research Professor Comparative Literature & English

  12. Next Steps • Customized ISO backup/restore • Image appraisal environment • Forensic examination tools • Emulation • Content Migration process • Image, image, image!

  13. Similar Tools Resources • Forensicswiki.org • OCLC “Demystifying Born Digital” Reports • AIMS White Paper (University of Virginia) • FRED: Forensic Recovery of Evidence Device • Used by Stanford & MITH • Open Source Software • Archivematica • BitCurator Matthew McKinley mjmckinl@uci.edu

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