How to record a video with smaller file size

Do you want to reduce the file size while you are using a screen recording program? To reduce the file size, you have to understand the relationship between video resolution, FPS, video codec, video quality and file size.

  • If you reduce a video resolution, the file size becomes smaller.
  • If you reduce a FPS value, the file size becomes smaller.
  • If you use a high-compression video codec such as H.264, the file size becomes smaller.
  • If you decrease the video quality, the file size becomes smaller.
  • If you use a high-compression audio codec such as AAC/MP3, the file size becomes smaller.
  • If you reduce audio bitrates, the file size becomes smaller.
  • If you reduce audio frequency, the file size becomes smaller.
  • ...


Do You Want to Reduce the File Size while Recording?

The major factor in video file size is the video resolution, FPS, video codec and video quality. Bandicam is popular because the recorded file size is smaller than other screen capture software. Bandicam records and compresses the video while recording (it records and compresses the recording at the same time). If you want to reduce the recorded file size, you can change the video resolution, FPS, video codec, video quality value in the Bandicam format settings - which you can see by following this image.

Format settings, video size, FPS, Codec, Quality

  1. If you change the video size from "Full size" to "Half size", you can reduce the video file size.
  2. If you change the FPS (frame per second) value from "30" to "15", you can reduce the video file size.
  3. If you use a high-compression video codec such as H.264, you can get a good quality video with a small size.
  4. If you change the quality value from "80" to "40", you can reduce the video file size.

Overall, in order to record low file size with high quality, you have to adjust the video settings and find the best settings which meet your requirements.

Comparison tables for video resolution and file size

The table below shows the relationship between video resolution and file size. (Recording time: 1 minute, Codec: H264, FPS: 30, Quality: 80).

Feature Resolution File Size Description
Video Resolution 640x480 7.7 MB If you reduce a video resolution, the file size becomes smaller.
960x540 (Half Size) 13.3 MB
1280x720 17.7 MB
1920x1080 (Full Size) 34.1 MB

Comparison tables for FPS and file size

The table below shows the relationship between frame rates and file size. (1 minute, Resolution: 1920x1080, Codec: H264, Quality: 80).

Feature Frame Rates File Size Description
FPS 5 FPS 8.9 MB If you reduce a FPS value, the file size becomes smaller.
15 FPS 21.1 MB
30 FPS 34.1 MB
60 FPS 59.0 MB

Comparison tables for video codec and file size

The table below shows the relationship between video codec and file size. (1 minute, Resolution: 1920x1080, FPS: 30, Quality: 80).

Feature Codec File Size Description
Video Codec HEVC (GPU) 33.5 MB If you use a high-compression video codec such as H.264, the file size becomes smaller.
» Best video codec for recording
H264 (GPU) 34.1 MB
H264 (High 4:4:4 lossless) 217 MB
Xvid 52.9 MB
MPEG-1 38.8 MB
Motion JPEG 420 MB
YV12 5,210 MB
RGB24 10,400 MB

Comparison tables for video quality and file size

The table below shows the relationship between video quality and file size. (1 minute, Resolution: 1920x1080, Codec: H264, FPS: 30).

Feature Quality Value File Size Description
Video Quality Quality 40 8.9 MB If you reduce the video quality value, the file size becomes smaller.
Quality 60 19.5 MB
Quality 80 34.1 MB
Quality 100 59.4 MB



How to reduce the file size after recording

If you want to reduce the file size after recording, download the free version of Bandicut, import the recorded video file, select unwanted parts of a video and then cut the video file through the [High-Speed mode] of Bandicut.

You can also convert the recorded video through the [Encoding mode] to reduce the file size. To convert the video file, import the recorded video file, click the 'Encoding Settings' button, and change the video codec, video quality value, video resolution and FPS in the Bandicut encoding mode settings.



Bandicut, Format settings, video size, FPS, Codec, Quality

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