Understanding timecode, timestamps and the preservation of timing information in video archives.
What is timecode?
Timecode is a system for identifying positions in moving-image material using time-based labels, typically expressed in hours, minutes, seconds and frames.
Why is timecode useful?
It can support editing, identification, cueing, production workflows and relationships between picture and associated material.
Why can timecode matter to archives?
For professional and broadcast recordings, timecode can be part of the technical context of the original material.
Timecode versus timestamp
A timestamp can identify a point in a digital sequence, while timecode is commonly used as a structured frame-based reference in video production.
Should timecode be preserved?
Where timecode is present and significant to the source, the preservation workflow should aim to retain or document it rather than discard it through unnecessary conversion.
Frequently Asked Questions
Is timecode the same as frame rate?
No. Frame rate describes how quickly frames are represented; timecode provides position references within the material.
Can old videotapes have timecode?
Yes. Many professional and broadcast formats can contain timecode, although its presence depends on the format and recording.
Should timecode be removed from a preservation master?
Not if it is significant source information. It should be retained or documented as appropriate.
Further Reading
Oxford Duplication Centre — Practical Expertise
Professional video preservation depends on accurate source identification, compatible playback equipment, a controlled capture chain and careful quality assurance. Preservation, production and access outputs should be treated as separate purposes.
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