Non-Drop Frame

What is Non-Drop Frame?

Non-Drop Frame (NDF) is a type of timecode format used in video production and editing. This format counts every frame in the video, regardless of the actual time that has passed, resulting in a discrepancy between the timecode and the actual elapsed time.

Understanding Non-Drop Frame

Non-Drop Frame timecode is based on a video system’s frame rate. For example, in a system with a frame rate of 30 frames per second (fps), one second of real time would equate to 30 frames on the timecode. This makes it easy to calculate the duration of a video clip or a sequence based on the number of frames.

However, this format does not account for the fact that video systems often run at slightly less than their nominal frame rate. For instance, NTSC video technically runs at 29.97 fps instead of 30 fps. Over time, this discrepancy can add up, causing the timecode to drift away from the actual elapsed time.

Implications of Non-Drop Frame

While the discrepancy of Non-Drop Frame may seem insignificant, it can cause various issues in video production and editing:

  • Inaccuracy in Time Measurement: The timecode may not accurately reflect the actual duration of the video. This could be problematic in scenarios where precise timing is crucial, such as broadcasting or synchronization with other media.
  • Difficulties in Synchronization: The slight drift in timecode can make it difficult to synchronize video clips, especially in long-form productions.
  • Confusion in Editing: The mismatch between the timecode and real time can confuse video editors, leading to errors in editing decisions.

When to Use Non-Drop Frame

Despite its limitations, Non-Drop Frame is still widely used in many video production scenarios. It’s typically used in productions where the slight discrepancy between the timecode and real time is not critical. For example, in short-form productions or for internal uses where precise synchronization with real-time clocks isn’t required.


In summary, Non-Drop Frame is a timecode format that counts every frame in a video, regardless of the actual elapsed time. It’s simple and straightforward, but it may cause issues in scenarios where accurate time measurement and synchronization are crucial. Understanding how Non-Drop Frame works can help video editors, filmmakers, influencers, and YouTubers make more informed decisions in their video production process.

Related Glossary:

Let's have a demo

Allow us to introduce you to the fascinating world of VideoMonkey!

Wait! Would you like a flat 25% discount?

You have nothing to lose – but the discount

No Contracts • Cancel Anytime