You can use High-speed mode for Joiner only when all formats (Video resolution, codec, etc.) are exactly the same.
You have to join videos first and then cut the video with [High-speed mode] (If you cut a video first then join videos, you will not be able to use [High-Speed mode].)
4. The start time of this file may change when using High-speed mode
Bandicam can precisely cut videos by "Frame" while maintaining the quality of the original video. However, some video files can only be cut by "Keyframe" in High-Speed mode. In this case, the start time of the video may change.
If you use [Encoding mode], you can cut the video precisely by "Frame."
The above problem occurs if the video does not have keyframe information or does not have enough keyframes.
You can minimize this issue by choosing the AVI or MP4 container in your screen recording program.
* Term) Frame and Keyframe
- Frame: A frame is a single shot of a series of still transparent pictures that form a video. (A frame contains partial information of a still scene.)
- Keyframe: A video file has a limited number of keyframes - not every frame is a keyframe. A keyframe is a frame used to indicate the beginning or end of a change made to the signal. (A keyframe contains full information of a still scene.)
(If there is a 30 FPS video, it will have 30 "Frames" and may have 1~5 "Keyframes" per second.)