Added link to test program.

unsupported/canon-lide-50.html

@@ -81,6 +81,11 @@ WM8199CDS / 45AECXM
       <a href="http://www11.brinkster.com/expressiondpf/index.html">Lide 35 chips</a>
     </p>
     <h2>Comments</h2>
+    <p>
+      There is a <a href="http://www.pirsoft-dsl-dropzone.de/">test program</a>
+      for these scanners which allows to scan at 600dpi, 8bit color.
+    </p>
+
     <p>
       The Lide 35 and 40 seem to be the same scanners as the Lide 50 (but have less
       software).