Canon EOS 250D Advanced User's Manual page 475

There are multiple movie files for a single movie shoot.
If the movie file size reaches 4 GB, another movie file will be created
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automatically (= 229). However, if you use an SDXC card formatted
with the camera, you can record a movie in a single file even if it
exceeds 4 GB.
My card reader does not recognize the card.
Depending on the card reader used and the computer's operating
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system, SDXC cards may not be correctly recognized. In this case,
connect your camera to the computer with the interface cable, then
import the images to the computer using EOS Utility (EOS software).
The image cannot be resized.
With this camera, you cannot resize JPEG b or RAW images
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(= 338).
The image cannot be cropped.
With this camera, you cannot crop RAW images (= 340).
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A red box is displayed on the image.
[3: AF point disp.] is set to [Enable] (= 323).
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A red box is not displayed on the image.
Even if [3: AF point disp.] is set to [Enable] (= 323), the red box is
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not displayed for the following images:
- Images shot with Multi Shot Noise Reduction (= 138)
- Images shot with <8: FG> or <v: ABCD>
- Cropped images (= 340)
- Images with Fish-eye effect applied after shooting (= 329)
Dots of light appear on the image.
White, red, or blue dots of light may appear in captured images if the
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sensor is affected by cosmic rays or similar factors. Their appearance
may be reduced by performing [Clean nowf] under [5: Sensor
cleaning] (= 273).
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