diff --git a/backend/config_parser.py b/backend/config_parser.py
index 75dcbad..8619722 100644
--- a/backend/config_parser.py
+++ b/backend/config_parser.py
@@ -1,3 +1,4 @@
+import traceback
 from genericpath import exists
 import os, sys
 from asyncio_dvrip import DVRIPCam
@@ -257,12 +258,14 @@ class TranscodeTools:
         try:
             await self.processing(status, file, nvr, reCreate)
         except Exception as e:
+            traceback.print_exc()
             self.statuses[status.b64].error = str(e)
 
     async def processing(self, status: TranscodeStatus, file:File, nvr: NVR, reCreate:bool = False):
-        raw_file = os.path.join(self.transcode_directory, status.uuid + ".h264")
+        raw_file = file.localPath(self.transcode_directory)
+        self.logger.info(f"save path: {raw_file}")
         
-        mp4_file = os.path.join(self.transcode_directory, status.uuid + ".h264.avi.mp4")
+        mp4_file = os.path.join(f"{raw_file}.avi.mp4")
         if os.path.exists(mp4_file) and os.path.getsize(mp4_file) != 0:
             nvr.logout()
             self.statuses[status.b64].outFile = mp4_file
diff --git a/backend/nvr_types.py b/backend/nvr_types.py
index d9b4517..094feb7 100644
--- a/backend/nvr_types.py
+++ b/backend/nvr_types.py
@@ -20,8 +20,8 @@ H265X = "h265x"
 
 class File:
     def __init__(self, data, channel = 0, stream = 0) -> None:
-        self.begin = datetime.strptime(data.get("BeginTime", data.get("begin")), NVR_DATETIME_FORMAT)
-        self.end = datetime.strptime(data.get("EndTime", data.get("end")), NVR_DATETIME_FORMAT)
+        self.begin:datetime = datetime.strptime(data.get("BeginTime", data.get("begin")), NVR_DATETIME_FORMAT)
+        self.end:datetime = datetime.strptime(data.get("EndTime", data.get("end")), NVR_DATETIME_FORMAT)
         self.DiskNo = data.get("DiskNo")
         self.SerialNo = data.get("SerialNo")
         self.size = int(data.get("FileLength"), 0) * 1024 if "FileLength" in data else data.get("size", 0)
@@ -47,16 +47,39 @@ class File:
     @property
     def json(self):
         b64 = self.to_b64.replace("==", "")
-        return {"filename": self.filename_cleared, "type": self.type, "size": self.size, "b64": b64, "converted":File.converted(b64)}
+        return {"filename": self.filename_cleared, "type": self.type, "size": self.size, "b64": b64, "converted":self.converted}
 
     @staticmethod
     def from_b64(b64):
         data = json.loads(base64.b64decode(b64).decode('utf-8'))
         return File(data, data.get("channel"), data.get("stream"))
 
-    @staticmethod
-    def converted(b64):
-        return os.path.exists(os.path.join(os.path.join(app_dir(), "transcode"), str(uuid_from_string(b64)) + ".h264.avi.mp4"))
+    @property
+    def converted(self):
+        return os.path.exists(self.localPath(os.path.join(os.path.join(app_dir(), "transcode"))) + ".avi.mp4")
+
+    def genPath(self, root, subPath, ext):
+        if not os.path.exists(os.path.join(root, subPath)):
+            os.mkdir(os.path.join(root, subPath))
+
+        if not os.path.exists(os.path.join(root, subPath, str(self.begin.year))):
+            os.mkdir(os.path.join(root, subPath, str(self.begin.year)))
+
+        if not os.path.exists(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month))):
+            os.mkdir(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month)))
+
+        if not os.path.exists(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month), str(self.begin.day))):
+            os.mkdir(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month), str(self.begin.day)))
+
+        if not os.path.exists(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month), str(self.begin.day), str(self.begin.hour))):
+            os.mkdir(os.path.join(root, subPath, str(self.begin.year), str(self.begin.month), str(self.begin.day), str(self.begin.hour)))
+
+        return os.path.join(root, subPath, str(self.begin.year), str(self.begin.month), str(self.begin.day), str(self.begin.hour), f"{self.filename_cleared.replace(' ', '_').replace('(', '_').replace(')', '_').replace('-', '').replace(':', '')}.{ext}")
+    def localPath(self, root, subPath = "video"):
+        return self.genPath(root, subPath, self.type)
+
+    def previewPath(self, root, subPath = "preview"):
+        return self.genPath(root, subPath, "jpg")
 
     async def generate_first_bytes(self, client:DVRIPCam, version = 0):
         client.logger.debug("init request")
diff --git a/backend/server.py b/backend/server.py
index 6e6f7c0..b6afe2e 100644
--- a/backend/server.py
+++ b/backend/server.py
@@ -94,7 +94,6 @@ class Server:
                     return ""
                 nvr:NVR = self.config.getRecorder(recorder_index).nvr
                 await nvr.login()
-                nvr.client.debug()
                 file: File = File.from_b64(b64 + "==")
 
                 async def after():
@@ -126,7 +125,6 @@ class Server:
 
                 nvr:NVR = self.config.getRecorder(recorder_index).nvr
                 await nvr.login()
-                nvr.client.debug()
                 file: File = File.from_b64(b64 + "==")
 
                 self.config.transcode_tools.statuses[b64] = TranscodeStatus(b64)