diff --git a/catalog.py b/catalog.py
new file mode 100644
index 0000000..1274087
--- /dev/null
+++ b/catalog.py
@@ -0,0 +1,17 @@
+import io
+import tarfile
+
+import package
+
+
+class Catalog:
+    def __init__(self, binary):
+        self.binary = binary
+        self.load()
+
+    def load(self):
+        f = io.BytesIO(self.binary)
+        archive = tarfile.open(fileobj=f)
+        for member in archive.getmembers():
+            print(member)
+        archive.close()
diff --git a/remote.py b/remote.py
index 09b5be7..37fb80d 100644
--- a/remote.py
+++ b/remote.py
@@ -2,6 +2,7 @@ import os
 import requests
 
 import arguments
+import catalog
 import hypertext
 
 
@@ -34,8 +35,8 @@ class Remote:
         a = {}
         c = {}
         for architecture in self.architectures:
-            url = os.path.join(self.location, DISTRIBUTION, architecture)
-            html = requests.get(url).content.decode(CHARSET)
+            location = os.path.join(self.location, DISTRIBUTION, architecture)
+            html = requests.get(location).content.decode(CHARSET)
             links = sorted(hypertext.get_links(html))
             archives = [link for link in links
                         if link.endswith(ARCHIVE)]
@@ -53,8 +54,8 @@ class Remote:
                     location = os.path.join(location, MINGW, subsystem)
                 if subsystem in ARCHITECTURES_SUBSYSTEMS[architecture]:
                     location = os.path.join(location, f'{subsystem}{FILES}')
-                    binary = requests.get(url).content
-                    c[architecture][subsystem] = binary
+                    binary = requests.get(location).content
+                    c[architecture][subsystem] = catalog.Catalog(binary)
         self.archives = a
         self.catalogs = c