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MD at a glance
MD
Markdown was created in 2004 by John Gruber with Aaron Swartz, but the later CommonMark effort became important because the original syntax description was too ambiguous to keep implementations aligned.
HEVC/H.265 at a glance
HEVC/H.265
The Joint Collaborative Team on Video Coding developed HEVC through ITU-T VCEG and ISO MPEG, building on H.264 coding tools while introducing 64×64 coding tree units, advanced motion compensation, and scalable/multiview extensions.
Format comparison
| Feature | MD | HEVC/H.265 |
|---|---|---|
| File type | Document | Video |
| Extensions |
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| MIME type |
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| Created year | 2004 | 2013 |
| Inventor | John Gruber and Aaron Swartz | Joint Collaborative Team on Video Coding (JCT-VC) — ITU-T and ISO/IEC |
| Status | active | active |
| Primary use cases |
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When to use each format
When to use MD
- Your source file is already in MD.
- Preserve source expectations before exporting to HEVC/H.265.
- MD is commonly used in document workflows.
When to use HEVC/H.265
- Your target workflow expects HEVC/H.265.
- Improve delivery compatibility with HEVC/H.265.
- HEVC/H.265 is commonly used in video workflows.
FAQs
Why convert MD to HEVC/H.265?
Convert to HEVC when the target environment can decode H.265 and the goal is to reduce bitrate for 4K, HDR, or long-form high-resolution video without giving up too much quality.
It is a strong target for premium streaming, UHD masters, efficient device delivery, and storage-sensitive archives that prioritize compression efficiency.
What changes when converting MD to HEVC/H.265?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting MD to HEVC/H.265?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.