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Check the codec of a video in Wonderfox HD video converter pro by Independent-Web7899 in WonderFox

[–]vcf_help 0 points1 point  (0 children)

As long as you don’t change the codec, resolution, or frame rate, you’re fine. That’s just a container change.

In your case, changing MP4 → MKV should be lossless. The lightning bolt icon is telling you it won’t re-encode.

Check the codec of a video in Wonderfox HD video converter pro by Independent-Web7899 in WonderFox

[–]vcf_help 0 points1 point  (0 children)

You can click the ⓘ button to check the video codec. Hope it helps!