Question 1

What’s the difference between a video format and a codec?

Accepted Answer

A video format (like MP4 or MOV) is the container that holds video, audio, subtitles, and metadata. A codec (like H.264 or ProRes) is the compression algorithm that reduces the file size of the video stored inside the container.

Question 2

What’s the best format and codec for uploading to YouTube or Instagram?

Accepted Answer

Use MP4 format with the H.264 codec for the best combination of quality, compatibility, and small file size. This works great for YouTube, Instagram, TikTok, and Facebook.

Question 3

Why does my video look different after uploading to social media?

Accepted Answer

Platforms often recompress or convert your video using their own codecs, which can cause a drop in quality. Exporting using the recommended settings (resolution, bitrate, codec) helps reduce this.

Question 4

What’s the best codec for professional video editing?

Accepted Answer

For high-quality editing, use ProRes (Mac) or DNxHD/HR (Windows). These codecs preserve quality and allow for smoother editing, especially with large files or multi-layer compositions.

Question 5

Can I convert between formats and codecs without losing quality?

Accepted Answer

Sometimes, yes—especially when converting between editing codecs or using lossless compression. However, converting lossy codecs (like H.264) multiple times can degrade quality. Use professional tools and choose the right export settings.

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how to reduce video file size

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how to reduce video file size

Video Formats & Codecs: The Essential Beginner’s Guide (What’s the Difference?)