1. Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Prestospace - A/V Archives into Mass Storage  Who are A/V Archives?  RAI, BBC, INA, BFI, ITN, Reuters  Greenpeace International, Imperial War Museum  Ambleside Oral History Group  How do they differ?  Size  Access Volume, Rate and Proportion  Revenue Model and Funding  Attitude to the ‘object’- Users vs hoarders

2. Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Volume - How much stuff is there?  BBC-  85km Shelves, approx 17 PB ( VERY APPROXIMATELY!)  Survey results  (User Requirements Survey results available on request)  20 archives across Europe  6m + Video Holdings (50-150PB?)  5m + Film Holdings (120PB-1EB?)  5m + Audio Holdings (less)  Many more archives not reported  Original Media Impact- Data rates  Sound Archives < Video Archives < Film Archives Film archival data rates could be very VERY high

3. Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Time 1 - Migration Rate  Accelerants  Current Formats Obsolescence (D3, DAT, etc.)  Current Media Decay  Chemical Decay and wear and tear  Pressure for Access  Decelerants  Limited Throughput (Only so many machines)  Cultural/ Technical Barrier  Outcome  Most Projects will take years  Some will take decades

4. Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Time 2 -Long Term Mass Storage  Long term storage  Items from birth of recording media- Already over 100 years old  Used to obsolescence  Broadcast archives - rolling migration operations  10 years is current format lifespan  Concern at IT industry ‘format churn’  Archives want format/media management  Predictability/plan-ability of technology

5. Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Ant Miller BBC FP6-IST-507336 PrestoSpace SAM Work Area Access - A driving force  For archives access = funding  Mass storage = easier, cheaper, more popular access  Some archives see mass storage as access only! Masters not on mass storage- ever!  Instant access required to any catalogued feature- sub-file access/ row access  Compression for distribution?  Store compressed (obsolescence & duplication)  Compress on the fly (storage vs processing)