diff --git a/README.md b/README.md
index 0e6dda8..61a7c95 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # Amiga Copperbars Examples from  "Amiga rasterbar are cool"
 
 These are the code files used to generate the rasterbars effects on the
-Agnus/Copper Industrious Rabbit video. I built them to compile in SAS/C
-6.58:
+Agnus/Copper Industrious Rabbit video [Meet the Copper](https://youtu.be/fdVrh7RnS-0).
+I built them to compile in SAS/C 6.58:
 
 `sc <filename> link`
 
@@ -35,3 +35,4 @@ to generate pseudo-random results in the demo, using the microseconds since
 the machine was turned on as the initial seed
 (using [timer.device](http://www.amigadev.elowar.com/read/ADCD_2.1/Devices_Manual_guide/node00C1.html)).
 This required enabling audio DMA for some reason that I don't understand.
+If you know why, please tell me via the About page!