diff --git a/scripts/parse_commands.py b/scripts/parse_commands.py
index b86751fb6cf52fbb3e265ab45f98f45301e07cac..c3f8d43f596a9edc9f2d0b6c2d0fdefebd71c871 100644
--- a/scripts/parse_commands.py
+++ b/scripts/parse_commands.py
@@ -86,7 +86,7 @@ if __name__ == '__main__':
     # Relies on the list being sorted
     i = 0
     while i + 1 < len(cmds_enc):
-        if " ".join(cmds_enc[i].split()[:-1]) == " ".join(cmds_enc[i+1].split()[:-1]):
+        if cmds_enc[i].split()[:-1] == cmds_enc[i+1].split()[:-1]:
             del cmds_enc[i+1]
         else:
             i = i + 1
@@ -185,6 +185,8 @@ if __name__ == '__main__':
         with open('scripts/rend_header.txt','r') as header:
             outfile.write(header.read())
         for cmd in cmds_rend:
+            absolute_out = re.search(r"-o ([^>]+\.wav)", cmd)
+            
             args = []
             for arg in cmd.split():
                 # Adjust file arguments, pass other arguments as they are
@@ -200,8 +202,14 @@ if __name__ == '__main__':
             if "ref" in cmd:
                 outfile.write(cmd+'\n')
             out = re.search(r"-o\s(([\S]+)(.wav|.raw|.pcm))", cmd)
+
             if out and "ref" in out.group(1):
-                outfile.write('$DIFF_BIN '+out.group(1).replace(CUT_PATH + r'/renderer_short/ref',REF_PATH + r'/renderer_short/ref')+' '+out.group(1)+' >> $LOG_FILE 2>&1\n')
+                diff_cmds=[]
+                for output in glob.glob(absolute_out.group(1) + '*'):
+                    output = path.relpath(output).replace('\\','/')
+                    output = re.sub('tests', CUT_PATH, output)
+                    diff_cmds.append('$DIFF_BIN '+output.replace(CUT_PATH + r'/renderer_short/ref',REF_PATH + r'/renderer_short/ref')+' '+ output +' >> $LOG_FILE 2>&1')
+                outfile.write(('; ').join(diff_cmds))
                 outfile.write('\n')            
         with open('scripts/script_footer.txt','r') as footer:
             outfile.write(footer.read())