diff --git a/bsp_tool/archives/alcohol.py b/bsp_tool/archives/alcohol.py
index 931f5291..abbedaec 100644
--- a/bsp_tool/archives/alcohol.py
+++ b/bsp_tool/archives/alcohol.py
@@ -5,7 +5,7 @@
 import io
 from typing import List
 
-from ..branches.base import Struct
+# from ..branches.base import Struct  # CIRCULAR IMPORT
 from . import base
 
 
@@ -17,26 +17,26 @@ class MediaType(enum.Enum):
     DVD_R = 18
 
 
-class MdsHeader(Struct):
-    __slots__ = [
-        "magic", "version", "media_type", "num_sessions",
-        "unknown_1", "bca_length", "unknown_2", "bca_offset",
-        "unknown_3", "disc_struct_offset", "unknown_4",
-        "sessions_offset", "dpm_offset"]
-    _format = "16s2B2HIH15I"  # 88 bytes
-    _arrays = {
-        "version": ["major", "minor"],
-        "unknown_2": 2, "unknown_3": 6, "unknown_4": 3}
-    _classes = {
-        "media_type": MediaType}
+# class MdsHeader(Struct):
+#     __slots__ = [
+#         "magic", "version", "media_type", "num_sessions",
+#         "unknown_1", "bca_length", "unknown_2", "bca_offset",
+#         "unknown_3", "disc_struct_offset", "unknown_4",
+#         "sessions_offset", "dpm_offset"]
+#     _format = "16s2B2HIH15I"  # 88 bytes
+#     _arrays = {
+#         "version": ["major", "minor"],
+#         "unknown_2": 2, "unknown_3": 6, "unknown_4": 3}
+#     _classes = {
+#         "media_type": MediaType}
 
 
-class MdsSessionHeader(Struct):
-    __slots__ = [
-        "first_sector", "last_sector", "num_sessions", "num_tracks",
-        "num_tracks_2", "first_track", "last_track", "unknown",
-        "tracks_offset"]
-    _format = "2IH2B2H2I"
+# class MdsSessionHeader(Struct):
+#     __slots__ = [
+#         "first_sector", "last_sector", "num_sessions", "num_tracks",
+#         "num_tracks_2", "first_track", "last_track", "unknown",
+#         "tracks_offset"]
+#     _format = "2IH2B2H2I"
 
 
 class TrackMode(enum.Enum):
@@ -50,27 +50,27 @@ class TrackMode(enum.Enum):
     MODE2_SUB = 0xEC  # Mode2 w/ subchannels
 
 
-class MdsTrack(Struct):
-    index: int  # track_number
-    __slots__ = [
-        "mode", "num_subchannels", "adr", "index", "point_number",
-        "minutes", "seconds", "frames", "zero", "pmin", "psec", "pframe",
-        "index_block_offset", "sector_size", "unknown_1", "first_sector",
-        "sector_offset", "num_filenames", "filenames_offset", "unknown_2"]
-    _format = "12BI10HIQ2I6I"
-    _arrays = {
-        "unknown_1": 9, "unknown_2": 6}
-    _classes = {
-        "mode": TrackMode}
+# class MdsTrack(Struct):
+#     index: int  # track_number
+#     __slots__ = [
+#         "mode", "num_subchannels", "adr", "index", "point_number",
+#         "minutes", "seconds", "frames", "zero", "pmin", "psec", "pframe",
+#         "index_block_offset", "sector_size", "unknown_1", "first_sector",
+#         "sector_offset", "num_filenames", "filenames_offset", "unknown_2"]
+#     _format = "12BI10HIQ2I6I"
+#     _arrays = {
+#         "unknown_1": 9, "unknown_2": 6}
+#     _classes = {
+#         "mode": TrackMode}
 
 
 class Mds(base.Archive):
     """Media Descriptor Sidecar"""
     # NOTE: needs linked .mdf (Media Descriptor File) data files
     _file: io.BytesIO  # DEBUG
-    header: MdsHeader
-    session_header: MdsSessionHeader  # 1x, not per-session?
-    tracks: List[MdsTrack]
+    # header: MdsHeader
+    # session_header: MdsSessionHeader  # 1x, not per-session?
+    # tracks: List[MdsTrack]
     filenames: List[str]
 
     def __init__(self):
@@ -79,18 +79,19 @@ def __init__(self):
 
     @classmethod
     def from_stream(cls, stream: io.BytesIO) -> Mds:
+        raise NotImplementedError()
         out = cls()
-        out.header = MdsHeader.from_stream(stream)
-        assert out.header.magic == b"MEDIA DESCRIPTOR"
-        assert out.header.version.major == 1
-        assert out.header.version.minor == 3
-        # sessions
-        stream.seek(out.header.sessions_offset, 1)
-        out.session_header = MdsSessionHeader.from_stream(stream)  # incorrect?
-        # stream.seek(out.session_header.tracks_offset, 1)
-        # out.tracks = [
-        #     MdsTrack.from_stream(stream)
-        #     for i in range(out.session_header.num_tracks)]
-        # TODO: filenames
+        # out.header = MdsHeader.from_stream(stream)
+        # assert out.header.magic == b"MEDIA DESCRIPTOR"
+        # assert out.header.version.major == 1
+        # assert out.header.version.minor == 3
+        # # sessions
+        # stream.seek(out.header.sessions_offset, 1)
+        # out.session_header = MdsSessionHeader.from_stream(stream)  # incorrect?
+        # # stream.seek(out.session_header.tracks_offset, 1)
+        # # out.tracks = [
+        # #     MdsTrack.from_stream(stream)
+        # #     for i in range(out.session_header.num_tracks)]
+        # # TODO: filenames
         out._file = stream  # DEBUG
         return out