diff --git a/pycmx/parse_cmx_statements.py b/pycmx/parse_cmx_statements.py
index 3f9c414..894996e 100644
--- a/pycmx/parse_cmx_statements.py
+++ b/pycmx/parse_cmx_statements.py
@@ -58,27 +58,17 @@ def _parse_cmx3600_line(line: str, line_number: int) -> object:
     :param line: A single EDL line.
     :param line_number: The index of this line in the file.
     """
-    long_event_num_p = re.compile("^[0-9]{6} ")
-    short_event_num_p = re.compile("^[0-9]{3} ")
-    x_event_form_p = re.compile("^([0-9]{4,5}) ")
-
+    event_num_p = re.compile(r"^(\d+)  ")
+    line_matcher = event_num_p.match(line)
+    
     if line.startswith("TITLE:"):
         return _parse_title(line, line_number)
     elif line.startswith("FCM:"):
         return _parse_fcm(line, line_number)
-    elif long_event_num_p.match(line) is not None:
-        length_file_128 = sum(_edl_column_widths(6, 128))
-        if len(line) < length_file_128:
-            return _parse_long_standard_form(line, 32, line_number)
-        else:
-            return _parse_long_standard_form(line, 128, line_number)
-    elif (m := x_event_form_p.match(line)) is not None:
-        assert m is not None
-        event_field_length = len(m[1])
-        return _parse_columns_for_standard_form(line, event_field_length,
-                                                8, line_number)
-    elif short_event_num_p.match(line) is not None:
-        return _parse_standard_form(line, line_number)
+    elif line_matcher is not None:
+        event_field_len = len(line_matcher.group(1))
+        source_field_len = len(line) - (event_field_len + 65)
+        return _parse_columns_for_standard_form(line, event_field_len, source_field_len, line_number)
     elif line.startswith("AUD"):
         return _parse_extended_audio_channels(line, line_number)
     elif line.startswith("*"):
@@ -108,26 +98,24 @@ def _parse_fcm(line, line_num) -> StmtFCM:
         return StmtFCM(drop=False, line_number=line_num)
 
 
-def _parse_long_standard_form(line, source_field_length, line_number):
-    return _parse_columns_for_standard_form(line, 6, source_field_length,
-                                            line_number)
+# def _parse_long_standard_form(line, event_field_length, source_field_length, line_number):
+#     return _parse_columns_for_standard_form(line, , source_field_length,
+#                                             line_number)
 
 
-def _parse_standard_form(line, line_number):
-    return _parse_columns_for_standard_form(line, 3, 8, line_number)
+# def _parse_standard_form(line, line_number):
+#     return _parse_columns_for_standard_form(line, 3, 8, line_number)
 
 
 def _parse_extended_audio_channels(line, line_number):
     content = line.strip()
-    if content == "AUD   3":
-        return StmtAudioExt(audio3=True, audio4=False, line_number=line_number)
-    elif content == "AUD   4":
-        return StmtAudioExt(audio3=False, audio4=True, line_number=line_number)
-    elif content == "AUD   3     4":
-        return StmtAudioExt(audio3=True, audio4=True, line_number=line_number)
+    audio3 = True if "3" in content else False 
+    audio4 = True if "4" in content else False
+    
+    if audio3 or audio4:
+        return StmtAudioExt(audio3, audio4, line_number)
     else:
-        return StmtUnrecognized(content=line, line_number=line_number)
-
+        return StmtUnrecognized(line, line_number)
 
 def _parse_remark(line, line_number) -> object:
     if line.startswith("FROM CLIP NAME:"):
diff --git a/tests/edls/ISSUE_14_conform_edl_issue_01.txt b/tests/edls/ISSUE_14_conform_edl_issue_01.edl
similarity index 100%
rename from tests/edls/ISSUE_14_conform_edl_issue_01.txt
rename to tests/edls/ISSUE_14_conform_edl_issue_01.edl
diff --git a/tests/edls/ISSUE_14_conform_edl_issue_02.txt b/tests/edls/ISSUE_14_conform_edl_issue_02.edl
similarity index 100%
rename from tests/edls/ISSUE_14_conform_edl_issue_02.txt
rename to tests/edls/ISSUE_14_conform_edl_issue_02.edl
diff --git a/tests/edls/ISSUE_14_conform_edl_issue_03.txt b/tests/edls/ISSUE_14_conform_edl_issue_03.edl
similarity index 100%
rename from tests/edls/ISSUE_14_conform_edl_issue_03.txt
rename to tests/edls/ISSUE_14_conform_edl_issue_03.edl
diff --git a/tests/test_parse.py b/tests/test_parse.py
index 8d75512..3212d52 100644
--- a/tests/test_parse.py
+++ b/tests/test_parse.py
@@ -39,8 +39,10 @@ class TestParse(TestCase):
             with open(path, 'r') as f:
                 edl = pycmx.parse_cmx3600(f)
                 for index, event in enumerate(edl.events):
-                    self.assertTrue(len(event.edits) > 0)
-                    self.assertTrue(event.number == index + 1)
+                    self.assertTrue(len(event.edits) > 0, 
+                                    f"Failed for {path}")
+                    self.assertEqual(event.number, index + 1, 
+                                     f"Failed for {path}")
 
     def test_events(self):
         with open("tests/edls/TEST.edl", 'r') as f:
@@ -119,4 +121,5 @@ class TestParse(TestCase):
                   encoding='ISO-8859-1') as f:
             edl = pycmx.parse_cmx3600(f)
             events = list(edl.events)
+
             self.assertEqual(len(events), 2839)