{"category":"video","files":[{"category":"video","download_url":"/samples/download/video/mkv/mkv_15s_sample_file_862KB.mkv/","extension":".mkv","ftype":"mkv","mime_type":"video/x-matroska","name":"mkv_15s_sample_file_862KB.mkv","sha256":"1740e26d74235ac0264fc8a099a487920dc04e92e7275f8aa831ac2b10fe1f54","size_bytes":882004,"size_human":"861.3 KB","url":"/static/samples/video/mkv/mkv_15s_sample_file_862KB.mkv"},{"category":"video","download_url":"/samples/download/video/mkv/mkv_30s_sample_file_1.7MB.mkv/","extension":".7MB.mkv","ftype":"mkv","mime_type":"video/x-matroska","name":"mkv_30s_sample_file_1.7MB.mkv","sha256":"b13503b56bd0e3f8096f3f0e4deefa8bd91502644fae16af13417ef715585d7d","size_bytes":1780845,"size_human":"1.7 MB","url":"/static/samples/video/mkv/mkv_30s_sample_file_1.7MB.mkv"},{"category":"video","download_url":"/samples/download/video/mkv/mkv_5s_sample_file_276KB.mkv/","extension":".mkv","ftype":"mkv","mime_type":"video/x-matroska","name":"mkv_5s_sample_file_276KB.mkv","sha256":"2ac02e78d4cdfc35d315fd65807e601466fac06c1c4fe4e7496046d0091b3bbd","size_bytes":282556,"size_human":"275.9 KB","url":"/static/samples/video/mkv/mkv_5s_sample_file_276KB.mkv"},{"category":"video","download_url":"/samples/download/video/mkv/mkv_60s_sample_file_3.4MB.mkv/","extension":".4MB.mkv","ftype":"mkv","mime_type":"video/x-matroska","name":"mkv_60s_sample_file_3.4MB.mkv","sha256":"09ab3f2d19b5ed4a34528423a29cdcb32fd43a075747169186856c1c5fafa2d8","size_bytes":3587680,"size_human":"3.4 MB","url":"/static/samples/video/mkv/mkv_60s_sample_file_3.4MB.mkv"}],"format":"mkv","generated_at":"2026-09-18T00:37:15Z","methodology":["Confirm codec/container detection matches actual stream info.","Test keyframe seek, subtitle loading, and fallback playback.","Measure startup and buffering behavior across browsers."]}