Sustainability of Digital Formats: Planning for Library of Congress Collections

Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact
Format Description Categories >> Browse Alphabetical List

AVI (Audio Video Interleaved) with Cinepak Codec

>> Back
Table of Contents
Format Description Properties Explanation of format description terms

Identification and description Explanation of format description terms

Full name AVI (Audio Video Interleaved) with Cinepak Video Codec
Description File format that wraps a Cinepak video bitstream with other data chunks, e.g., audio, in an AVI wrapper. Multiple versions of Cinepak exist, including SuperMac, Radius, and Compression Technologies; this document does not distinguish between them.
Production phase Used as a middle-state and/or final-state format for enduser delivery.
Relationship to other formats
    Subtype of AVI, AVI (Audio Video Interleaved) File Format
    Contains Cinepak, Cinepak. Video codec
    May contain WAVE, WAVE Audio File Format. For audio (interleaved with video).
    May contain MP3_CBR, MP3, Constant Bit Rate. For audio interleaved with video.

Local use Explanation of format description terms

LC experience or existing holdings  
LC preference See AVI

Sustainability factors Explanation of format description terms

Disclosure See AVI and Cinepak
    Documentation See AVI and Cinepak
Adoption AVI is widely adopted for video production and filemaking; in 2000, commentator John McGowan writes, "Cinepak is the most widely used Video for Windows codecs."
    Licensing and patents See AVI and Cinepak
Transparency See Cinepak
Self-documentation See AVI
External dependencies See AVI
Technical protection considerations See AVI

Quality and functionality factors Explanation of format description terms

Moving Image
Normal rendering Good support.
Clarity (high image resolution) Moderate to good, given that this is a format typically used for compression and does not support interlaced video. Outcome will depend on the type and extent of compression, and the encoder used. High resolution work is limited in the Windows environment due to file size limits (2 GB with FAT 16 technology; theoretical 8 GB with later technologies).
Functionality beyond normal rendering See AVI

File type signifiers and format identifiers Explanation of format description terms

Tag Value Note
Filename extension avi
 
Internet Media Type See related format. 

See AVI.

Magic numbers See related format. 

See AVI.

Microsoft FOURCC CVID
See the list of FOURCC codes. FOURCC codes are no longer managed by Microsoft, which has developed a new mechanism for identifying rich media types in general.

Notes Explanation of format description terms

General  
History  

Format specifications Explanation of format description terms


Useful references

URLs


Last Updated: 02/21/2017