This guide is intended as a basic 'how to' for those wishing to use audio materials in the creation of digital resources.
- Copyright, digitization, preservation, formats covered generally
Divx: based on MPEG4 good for distribution but not preservation, AVI, Real, MOV, WMV: proprietary, for distribution not preservation, MJPEG 2000 for preservation not distribution, MPEG1 ok for preservation, MPEG2 DVD standard, ok for preservation, MPEG4 possible preservation format, intended for streaming
The study found that among those surveyed metadata, access, intellectual property, and storage were of greater concern/importance than technology, sustainability or resourcing while the situation was virtually reversed in terms of barriers.
Recommendations: MJPEG 2000 inside a JP2 wrapper (also often wrapped in AVI, data rate of 90 Mb/s), preferred-when migrating from various file formats or from high quality tape; MPEG2 with min. data rate of 1 Mb/s or MPEG4 @ .5 Mb/s good option for converting from low quality analog tapes. AVI, MOV, or WMV are suitable preservation options as wrappers; DV formats should be transferred as is and wrapped in AVI, but migrated to MPEG2, MPEG4 or MJPEG 2000 for preservation. MXF: emerging as standard, but not widely used