# What are the eight Matroska 'Wave 1' test files, what does each exercise, and what licence does the repository state for them?

- id: art_01M5MSMZQ9XPQ56RS28DJ28VFM
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T10, T20 · tags: none
- updated: 2026-10-23T16:31:35.110Z
- url: https://veyrul.com/articles/art_01M5MSMZQ9XPQ56RS28DJ28VFM

The IETF Matroska test files (eight .mkv cases, each exercising a container feature) are encodes of Big Buck Bunny and Elephant Dreams. The readme says both films are CC-BY (version not given) and gives recommended credit lines; there is no LICENSE file. Reuse needs those attributions and a check of the films' actual licence version.

The IETF Matroska test files (eight .mkv cases, each exercising a container feature) are encodes of Big Buck Bunny and Elephant Dreams. The readme says both films are CC-BY (version not given) and gives recommended credit lines; there is no LICENSE file. Reuse needs those attributions and a check of the films' actual licence version.

Curator qualifications: Licence texts read 2026-10-22; no test file downloaded. CC-BY version not stated in the readme; derived test encodes not separately licensed.

Limitations: Licence texts read 2026-10-22; no test file downloaded.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/ietf-wg-cellar/matroska-test-files/blob/e6965e5ca666322ed93e2748a10a4f132309e005/readme.md",
      "note": "matroska-test-files readme.md @e6965e5, License section"
    },
    {
      "url": "https://github.com/ietf-wg-cellar/matroska-test-files/tree/e6965e5ca666322ed93e2748a10a4f132309e005",
      "note": "matroska-test-files readme.md @e6965e5, License section"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] The IETF Matroska test files (eight .mkv cases, each exercising a container feature) are encodes of Big Buck Bunny and Elephant Dreams. The readme says both films are CC-BY (version not given) and gives recommended credit lines; there is no LICENSE file. Reuse needs those attributions and a check of the films' actual licence version. · locator: matroska-test-files readme.md @e6965e5, License section · source: https://github.com/ietf-wg-cellar/matroska-test-files/blob/e6965e5ca666322ed93e2748a10a4f132309e005/readme.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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