diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000000000000000000000000000000000000..5b53040863e235763f884409db898f1e2817d7c3
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,7 @@
+based on:
+* system policy "Example MKV FFV1 digitization policy" by mediaconch
+* public policy "Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32
+  everywhere" by Jérôme Martinez (MediaArea), CC-BY-SA-4.0+
+
+Therefore, the conditions of CC-BY-SA-4.0+ must be observed, check
+https://creativecommons.org/licenses/by-sa/4.0/ for a detailed explanation.