NDSA:Standards and Best Practices Working Group/Optical MeetingNotes/Morel

Morgan Morel (George Blood Audio & Video) @av_morgan
- 500 once written DVDs - American Folklife Collection Veterans History Project.
- Staff at vendor asked to create findings report; outlining troubles and tools used.
- Formats for medium term storage white paper; ISO disc image recommended.
- ISO disc image can be mounted filesystem as if it were inserted into drive
- Extract production master files
- VideoTS folder and AudioTS folder
  - [Going through folders as they appear:] VideoTS is all video content - IFO is info about playback and navigation
  - VOB - audio and video data _0 menus - limit to 1GB content - need to connect to make more than one to make it playable
  - All folders listed needed to be intact
- CLI: *ended up using most for project on-site at George Blood.
  - hdiutil*
  - dd
  - ddrescue*
- GUI:
  - Mediagrabber
  - DVD Decrypter
  - Used hdutil and ddrescure - powerful for automated systems run from server
  - make workable iso images in case of damage etc
- Tools for extraction: *ended up using most for project on-site at George Blood.
  - GUI: compressor, handbrake, mpegstreamclip, streamz
  - CLI: FFmpeg*
- Out of 500 DVDs, 49 were problematic
- 9 had physical issues - ok after polishing
- Cloning errors for rest - ddresue could still make working ISO images
- 31 were DVD-ROM instead of DVD-video.
- http://www.digitizationguidelines.gov/audio-visual/documents/IntrmMastVidFormatRecs_20111001.pdf