diff --git a/tests/results.txt b/tests/results.txt
index 01eebbf81..2a71988bd 100644
--- a/tests/results.txt
+++ b/tests/results.txt
@@ -124,3 +124,4 @@ T_274h264_in_nalus_in_avi:e4a53e3af787cf51877c1ac1a61f667a:passed:20100629-09072
 T_275srt_mixed_eol_styles:99c107c5c61d8ceab4f955ff51e6eb55:passed:20100706-090848:0.414861741
 T_276h264_without_nalus_in_avi:568d6322703c9f6763addfbafc31dab2:passed:20100706-224102:0.922168875
 T_277display_dimensions_fixing_aspect_ratio_usage:2f5549932b476c234e72b9f7ea3ed19c-f269a5ac10c490998300ab3ed37706b7-39de27669f5926c9ae3b93f0d283622a:passed:20100718-201627:2.586261178
+T_278turning_off_compression:3566783209ac478a943dedbd7f84c99f-3566783209ac478a943dedbd7f84c99f:passed:20100728-121842:0.806040817
diff --git a/tests/test-278turning_off_compression.rb b/tests/test-278turning_off_compression.rb
new file mode 100644
index 000000000..7b2fc5ec3
--- /dev/null
+++ b/tests/test-278turning_off_compression.rb
@@ -0,0 +1,15 @@
+#!/usr/bin/ruby -w
+
+class T_278turning_off_compression < Test
+  def description
+    return "mkvmerge / Matroska with compression, turning off compression"
+  end
+
+  def run
+    merge "--compression -1:none data/mkv/compression/16.nocomp.mkv + --compression -1:none data/mkv/compression/17.comp.mkv"
+    result = hash_tmp
+    merge "--compression -1:none data/mkv/compression/16.comp.mkv + --compression -1:none data/mkv/compression/17.nocomp.mkv"
+    result + "-" + hash_tmp
+  end
+end
+