DVD from Motion Picture Film Original [MPD-D2]
Record Type: Digital Output from Motion Picture Film Source
Expected Use: Distribution Copy
Product Name: DVD from Motion Picture Film Original [MPD-D2]
Product Purpose: This product option is used to fulfill special project requests for which file delivery is not possible or practical.
Nature of Source Material: Authored DVDs are made with temporary 8Mbps SD 29.97 fps (interlaced) MPEG-2 files. The MPEG-2 is made from a reproduction master 4K ProRes 4444 MOV (QuickTime File Format), HD (High Definition) AVI (Audio Video Interleaved), or MP4 file and is not described independently as a product.
Possible File Derivatives: Derivatives are not made from this product category.
Other Information: This was the previous delivery mechanism in the Moving Image and Sound Research Room for all digitized moving images. DVDs are now only created by special request of the source record’s custodial unit.
File Properties
| Container Format |
|---|
|
Container
Essence Data
|
| File Specifications |
|
Video data
Audio data
Typical file size: 60 MB/minute or 3.6 GB/hour |
Quality Control
Quality Assurance and Quality Control for Distribution Copy Video Files
The National Archives and Records Administration (NARA) uses a commercially available, automated batch processing software tool to evaluate specific quality metrics for files created directly from film captures (see MPD-R1 and MPD-R2). DVD products are derivatives of files created according to the NARA Film Reference standard operating procedures (SOP). We rely on visual quality control (QC) and spot checks to confirm completeness and accuracy of slates and DVD menus. If an authored DVD does not meet specified requirements, a new copy is authored.
Metadata
Item identification information is included in the DVD menu and printed on the DVD label and its case.
Rationale
The Motion Picture Lab retains the ability to create DVDs in cases where a physical media product is required. File-based distribution products are preferred in almost all cases due to the lower resolution and 29.97i framerate of video on DVD. In cases where a requester is unable to play back a file-based product, a DVD may be created to provide access to NARA records.