diff --git a/atrcopy/ataridos.py b/atrcopy/ataridos.py
index 3d6ff89..c8d8e72 100644
--- a/atrcopy/ataridos.py
+++ b/atrcopy/ataridos.py
@@ -84,7 +84,7 @@ class AtariDosDirent(object):
         self.deleted = False
         self.num_sectors = 0
         self.starting_sector = 0
-        self.filename = ""
+        self.basename = ""
         self.ext = ""
         self.is_sane = True
         self.current_sector = 0
@@ -94,7 +94,12 @@ class AtariDosDirent(object):
     
     def __str__(self):
         flags = self.summary()
-        return "File #%-2d (%s) %03d %-8s%-3s  %03d" % (self.file_num, flags, self.starting_sector, self.filename, self.ext, self.num_sectors)
+        return "File #%-2d (%s) %03d %-8s%-3s  %03d" % (self.file_num, flags, self.starting_sector, self.basename, self.ext, self.num_sectors)
+
+    @property
+    def filename(self):
+        ext = ("." + self.ext) if self.ext else ""
+        return self.basename + ext
     
     def summary(self):
         output = "o" if self.opened_output else "."
@@ -132,7 +137,7 @@ class AtariDosDirent(object):
         self.deleted = (flag&0x80) > 0
         self.num_sectors = int(values[1])
         self.starting_sector = int(values[2])
-        self.filename = str(values[3]).rstrip()
+        self.basename = str(values[3]).rstrip()
         self.ext = str(values[4]).rstrip()
         self.is_sane = self.sanity_check(image)
 
@@ -143,7 +148,7 @@ class AtariDosDirent(object):
         values[0] = flag
         values[1] = self.num_sectors
         values[2] = self.starting_sector
-        values[3] = self.filename
+        values[3] = self.basename
         values[4] = self.ext
         return data
 
@@ -203,17 +208,13 @@ class AtariDosDirent(object):
         self.current_sector = next_sector
         num_bytes = raw[-1]
         return raw[0:num_bytes], num_bytes
-    
-    def get_filename(self):
-        ext = ("." + self.ext) if self.ext else ""
-        return self.filename + ext
 
     def set_values(self, filename, filetype, index):
         if "." in filename:
             filename, ext = filename.split(".", 1)
         else:
             ext = "   "
-        self.filename = "%-8s" % filename[0:8]
+        self.basename = "%-8s" % filename[0:8]
         self.ext = ext
         self.file_num = index
         self.dos_2 = True
@@ -591,12 +592,12 @@ class AtariDosDiskImage(DiskImageBase):
             if last:
                 break
         if len(byte_order) > 0:
-            name = "%s %ds@%d" % (dirent.get_filename(), dirent.num_sectors, dirent.starting_sector)
-            verbose_name = "%s (%d sectors, first@%d) %s" % (dirent.get_filename(), dirent.num_sectors, dirent.starting_sector, dirent.verbose_info)
+            name = "%s %ds@%d" % (dirent.filename, dirent.num_sectors, dirent.starting_sector)
+            verbose_name = "%s (%d sectors, first@%d) %s" % (dirent.filename, dirent.num_sectors, dirent.starting_sector, dirent.verbose_info)
             raw = self.rawdata.get_indexed(byte_order)
             segment = DefaultSegment(raw, name=name, verbose_name=verbose_name)
         else:
-            segment = EmptySegment(self.rawdata, name=dirent.get_filename())
+            segment = EmptySegment(self.rawdata, name=dirent.filename)
         return segment
     
     def get_file_segments(self):
diff --git a/atrcopy/diskimages.py b/atrcopy/diskimages.py
index 2095285..1066231 100644
--- a/atrcopy/diskimages.py
+++ b/atrcopy/diskimages.py
@@ -275,7 +275,7 @@ class DiskImageBase(object):
     
     def find_dirent(self, filename):
         for dirent in self.files:
-            if filename == dirent.get_filename():
+            if filename == dirent.filename:
                 return dirent
         raise FileNotFound("%s not found on disk" % filename)
     
@@ -296,7 +296,7 @@ class DiskImageBase(object):
             try:
                 segment = self.get_file_segment(dirent)
             except InvalidFile, e:
-                segment = EmptySegment(self.rawdata, name=dirent.get_filename(), error=str(e))
+                segment = EmptySegment(self.rawdata, name=dirent.filename, error=str(e))
             segments.append(segment)
         return segments
 
diff --git a/atrcopy/dos33.py b/atrcopy/dos33.py
index b69f448..13718d2 100644
--- a/atrcopy/dos33.py
+++ b/atrcopy/dos33.py
@@ -511,12 +511,12 @@ class Dos33DiskImage(DiskImageBase):
             if last:
                 break
         if len(byte_order) > 0:
-            name = "%s %ds@%d" % (dirent.get_filename(), dirent.num_sectors, dirent.sector_map[0])
-            verbose_name = "%s (%d sectors, first@%d) %s" % (dirent.get_filename(), dirent.num_sectors, dirent.sector_map[0], dirent.verbose_info)
+            name = "%s %ds@%d" % (dirent.filename, dirent.num_sectors, dirent.sector_map[0])
+            verbose_name = "%s (%d sectors, first@%d) %s" % (dirent.filename, dirent.num_sectors, dirent.sector_map[0], dirent.verbose_info)
             raw = self.rawdata.get_indexed(byte_order)
             segment = DefaultSegment(raw, name=name, verbose_name=verbose_name)
         else:
-            segment = EmptySegment(self.rawdata, name=dirent.get_filename())
+            segment = EmptySegment(self.rawdata, name=dirent.filename)
         return segment
 
 
diff --git a/atrcopy/kboot.py b/atrcopy/kboot.py
index 50b809e..c33d1a7 100644
--- a/atrcopy/kboot.py
+++ b/atrcopy/kboot.py
@@ -9,10 +9,10 @@ class KBootDirent(AtariDosDirent):
         AtariDosDirent.__init__(self, image)
         self.in_use = True
         self.starting_sector = 4
-        self.filename = image.filename
-        if not self.filename:
-            self.filename = "KBOOT"
-        if self.filename == self.filename.upper():
+        self.basename = image.filename
+        if not self.basename:
+            self.basename = "KBOOT"
+        if self.basename == self.basename.upper():
             self.ext = "XEX"
         else:
             self.ext = "xex"
diff --git a/atrcopy/utils.py b/atrcopy/utils.py
index 5f51f44..47813b7 100644
--- a/atrcopy/utils.py
+++ b/atrcopy/utils.py
@@ -148,7 +148,7 @@ class Directory(BaseSectorList):
 
     def find_dirent(self, filename):
         for dirent in self.dirents.values():
-            if filename == dirent.get_filename():
+            if filename == dirent.filename:
                 return dirent
         raise FileNotFound("%s not found on disk" % filename)