Motion Picture Film Median Capture - HD AVI [MPD-R2]
|Record Type||Digital Moving Images from Film-based Source Material|
|Expected Use||Reproduction Master|
|Product Name||Motion Picture Film Median Capture - HD AVI [MPD-R2]|
The purpose of this product is to respond to reference and reproduction requests.
|Nature of Source Material||
All 35mm and 16mm film elements (B&W or color) with or without sound in stable condition as demonstrated by a determination of “Medium” or below on the At Risk Assessment Guide.
|File Properties||Data Format||
Container: AVI (Audio Video Interleaved)
Timecode: Source LTC/VITC
Target Total Bitrate: ~800 Mbps
Typical file size: ~ 1200 MB/minute or 72 GB/hour
|Possible File Derivatives||
This product can be use to make distribution files.
Quality Assurance and Quality Control for HD AVI Format Products
NARA uses a commercially available, automated batch processing software tool to evaluate specific quality metrics. Below is a outline of our current processes for HD AVI formatted products. The exact aim point values are still in the testing phase. Once these values are confirmed, they will be added to this site. We continue to adjust our benchmarks and workflows as needed.
NARA is developing an in house job tracking order system to better coordinate work at the Branch level.
Using automated batch-processing software tools, test plans are developed for each format and/or each appropriate project. The test plan allows for some characteristics to be evaluated on an actionable basis (warning, fail or pass depending on the defined parameters). Others are logged for internal use but are not actionable as a warning, pass or fail. Aim points for these benchmarks are evaluated against NARA's product specifications as well as NARA defined aim points which may change depending on specific project goals. The following represents the quality test plan technical characteristics for AVI products.
Terms used in the QC protocols are defined in the Glossary of Terms.
One-light color timing will be employed as appropriate during the initial capture process but otherwise, the files are unaltered.