diff --git a/.DS_Store b/.DS_Store
index d00c555..3df77a9 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/DSK Image/readme.md b/DSK Image/readme.md
index 22bb5fd..a198de1 100644
--- a/DSK Image/readme.md	
+++ b/DSK Image/readme.md	
@@ -1,3 +1,10 @@
+Reads a 140k DSK file, typically an Apple II 5 1/4'' disk image, and produces a PNG visual representation of the data on the disk.
+
+Requires ImageMagick: 
+	http://www.imagemagick.org/
+and python PNG module: 
+	https://pypi.python.org/pypi/pypng 
+
 See a demo on YouTube here:
 https://www.youtube.com/watch?v=Hg_jUEV1-g8&list=PL_8ByM2n4E2ta4gRfhW2ejIn5EfgVbXfS&index=8