Many organizations want the most pristine, uncompressed, high quality files possible. That may seem to make sense, but that is usually unrealistic for most organizations. The storage costs to store the massive files can "lead to paralysis in your digital initiatives and to significant long-term data loss (owing to lack of funds for digitization and archival storage upkeep)." While this may be the best way for some, don't automatically assume there is only one right way of audiovisual digitization. There are many options, file types, and organizational factors. An important part of this is to define your primary goal. The web site includes a chart that shows estimated information about a project:
File Type | Bitrate (Mbps) | Total Footprint for 500 Hours (Terabytes) |
4K DPX (no audio) | 9830 | 2,109.29 TB |
2K DPX (no audio) | 2400 | 514.98 TB |
Uncompressed 10 Bit HD | 1200 | 257.49 TB |
Uncompressed 8 Bit HD | 952 | 204.28 TB |
Uncompressed 10 Bit SD | 228 | 48.92 TB |
Uncompressed 8 Bit SD | 170 | 36.48 TB |
Lossless Jpg2K 10 Bit HD | 445 | 95.49 TB |
Lossless Jpg2K 8 Bit HD | 330 | 70.81 TB |
Lossless Jpg2K 10 Bit SD | 85 | 18.24 TB |
Lossless Jpg2K 8 Bit SD | 65 | 13.95 TB |
DV25 | 31 | 6.65 TB |
Storage costs are "neither cheap nor long term". You can't just put files on a hard drive and expect them to survive indefinitely. A long term solution requires redundant, archivally sound storage that is migrated to newer storage every five years. "It does no one any good to ingest thousands of hours of 4K scans and then have to pull the plug on the storage fifteen years down the line. Sustainability should always be paramount." Each institution has to decide what is the best option for them.
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