CSIRO Film Collection: videos 700 - 799 - archival versions

CSIRO produced its first film in 1946. It was a two-hour, five-part epic in black and white designed for a specialist audience of Commonwealth scientists meeting in London. It showed them - in the most graphic way possible at the time - the nature and extent of the research facilities of an organisation embarking on the problems of post-war reconstruction.\n\nWithin a few years, a permanent film unit was established and began to specialise in producing films for the specific audiences on particular areas of research.\n\nBy the 1960's, it became apparent that many of the films were of interest to a much wider audience. Schools, colleges and universities were beginning to introduce the audio-visual medium to the learning process and CSIRO films were in increasing demand. Makers of television programmes looked to CSIRO films for images of science not yet accessible to the public eye.\n\nLineage: Original films were scanned to produce uncompressed Quicktime videos, YUV 4:2:2, 25 frames per second interlaced. These were converted to JPG2000 videos in a MXF container (.mxf). Video resolution: 720x288. 50 frames per second progressive. Decoded format: Planar 4:2:2 YUV. Audio codec: PCM S16 LE (s16l). Audio sample rate: 48000 Hz. Bits per sample: 16. For compressed versions check in the "Related Links" section.

澳大利亚联邦科学与工业研究组织（CSIRO）于1946年推出首部影片。该片为黑白鸿篇巨制，全长两小时，分为五个章节，专为在伦敦参会的英联邦科研专家群体定制。影片以当时最为直观的形式，向他们展示了这家正着手解决战后重建难题的机构的科研设施概况与覆盖范围。

数年内，该组织便设立了常设影视制作部门，并开始专注于为特定科研领域的目标受众打造专属影片。

到20世纪60年代，诸多影片的受众圈层已显著扩大。彼时，中小学、学院与高校正逐步将视听媒介引入教学流程，CSIRO出品的影片需求与日俱增。电视节目制作方也纷纷从CSIRO影片中获取尚未对公众公开的科学影像素材。

数据溯源：
原始影片经扫描生成未压缩Quicktime视频，采用YUV 4:2:2色彩空间，帧率为25帧/秒，隔行扫描格式。随后转换为封装于MXF容器（.mxf）内的JPEG2000视频。视频分辨率为720×288，帧率为50帧/秒，逐行扫描格式。解码格式为平面4:2:2 YUV。音频编码格式为PCM S16 LE（s16l），音频采样率为48000赫兹，采样位深为16比特。如需获取压缩版本，请查阅"相关链接"板块。