...
| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Access | ||||
| Video | Preferred | Codec: JPEG 2000 Wrapper: QuickTime, MXF (MXF OP1a, OP1b operational patterns or AS-07) | X | Recommend lossless compression | |
| Codec: Uncompressed Wrapper: QuickTime | X | 8 bit or 10 bit | |||
| Codec: DV Wrapper: QuickTime | X | For digitized DV tape | |||
| Codec: MPEG-2 Wrapper: QuickTime | X | ||||
| Codec: H.264 Wrapper: QuickTime | X | Any of the 21 different profiles | |||
| Accepted | Codec: Avid DNxHD Wrapper: QuickTime, MXF (MXF OP1a, OP1b operational patterns or AS-07) | X | |||
| Codec: Apple ProRes Wrapper: QuickTime | X | ||||
...
Disk Image Formats
...
| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Access | ||||
| Disk Image | Preferred | RAW(IMG,DD) | X | Often disk image formats are split into smaller files that are stitched together in sequence, often in 2GB chunks. When this occurs, many systems use sequential file extension numbering to delineate the relationships, e.g., myimage.001, myimage.002, myimage.003; or yourimage.e01, yourimage.e02, yourimage.e03. When this occurs, it is imperative that original filenames AND extensions be preserved so that they can be re-instantiated upon delivery to an end user (otherwise it will not be possible to put the sequence back together in the proper order). | |
| ISO | X | There are possibilities that some ISO files are merely RAW files that contain ISO file systems within them. Some ISO files may be pure copies of ISO file systems. | |||
| BIN/CUE | X | Often disk image formats are split into smaller files that are stitched together in sequence, often in 2GB chunks. When this occurs, many systems use sequential file extension numbering to delineate the relationships, e.g., myimage.001, myimage.002, myimage.003; or yourimage.e01, yourimage.e02, yourimage.e03. When this occurs, it is imperitave that original filenames AND extensions be preserved so that they can be re-instantiated upon delivery to an end user (otherwise it will not be possible to put the sequence back together in the proper order).Only Only .BIN files (and sometimes .ISO files) include sidecare .CUE files. The .CUE files serve as metadata for understanding the type and composition of data stored in the .BIN (or .ISO) file. | |||
| EWF-E01 (EWCF-ASR02) | X | Often disk image formats are split into smaller files that are stitched together in sequence, often in 2GB chunks. When this occurs, many systems use sequential file extension numbering to delineate the relationships, e.g., myimage.001, myimage.002, myimage.003; or yourimage.e01, yourimage.e02, yourimage.e03. When this occurs, it is imperitave that original filenames AND extensions be preserved so that they can be re-instantiated upon delivery to an end user (otherwise it will not be possible to put the sequence back together in the proper order). | |||
...
CAD Formats
...
Deposit the native CAD file together with a derivative PDF and make both deliverable. The PDF provides an alternative “fixed” preservation copy, providing mitigation for future obsolescence/rendering risks; while the native CAD file provides a truer version of the original, for users who are able to still read the format.
...
| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Access | ||||
| 2D CAD Drawing | Preferred | Portable Document Format / (PDFmimetype: application/pdf) | X | fonts embeddedand linked files embedded | |
| AutoCAD Drawing / (DWGmimetype: application/dwg (and others)) | X | prefer linked files embedded | |||
| Drawing Interchange Format / (AutoCAD DXFmimetype: application/dxf (and others)) | X | prefer linked files embedded | |||
| 3D CAD Drawing | Preferred | Portable Document Format / (PDFmimetype: application/pdf) | X | fonts embeddedand linked files embedded and embedded 3D content in U3D or PRC format | |
| AutoCAD Drawing / (DWGmimetype: application/dwg (and others)) | X | prefer linked files embedded | |||
| Drawing Interchange Format / (AutoCAD DXFmimetype: application/dxf (and others)) | X | prefer linked files embedded | |||
| Extensible 3D Graphics / (X3Dmimetype: model/x3d+xml) | X | prefer xml encoding to binary or vrml | |||
...
Audio Formats
| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Access | ||||
| Audio | Preferred | Waveform Audio (WAV) | X | ||
| MPEG-4 Audio (MP4) | X | ||||
| MPEG 1/2 Audio Layer 3 (MP3) | X | ||||
| Accepted | Audio Interchange File Format (AIFF) | X | |||
| RealAudio - SMIL with sequential links to RealAudio files | X | Rendered by Streaming Delivery Service (SDS) | |||
...
Word Processing Formats
| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Access | ||||
| Word Processing | Preferred | Portable Document Format (PDF), PDF/A or PDF/X | X | ||
| Accepted | Native file format: - e.g. Microsoft Word Binary File Format (DOC), Office Open XML Document (DOCX), Rich Text Format (RTF), WordPerfect Document (WPD) with normalized "fixed" preservation derivative: - e.g. Portable Document Format (PDF) | X | |||
...
Formats for Delivery Copies
| Harvard Library Delivery Service | Supported Formats |
|---|---|
| File Delivery Service (FDS) | Technically any format. Initially FDS will only deliver the following formats until additional access/use policy and metadata is developed and implemented: ICC, PDF, Plain Text, SGML, XML, ZIP. |
| Full-text Search Service (FTS) | Plain text in ASCII or UTF-8 character encoding |
| Image Delivery Service (IDS) | JPEG, GIF, JPEG2000 JP2, TIFF |
| Page Delivery Service (PDS) | Page images: JPEG2000 JP2, JPEG, GIF, TIFF (bitonal, CCITT Group 4 Fax compression) Page text: Plain text in ASCII or UTF-8 character encoding |
| Streaming Delivery Service (SDS) | MP3 RealAudio, SMIL with sequential links to RealAudio files |