diff --git a/metadata.json b/metadata.json
deleted file mode 100644
index 57667538efdb9d73808c77818b8105f95194dbe4..0000000000000000000000000000000000000000
--- a/metadata.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-    "env_info": {
-        "env_id": "HammerNail-v1",
-        "env_kwargs": {
-            "num_envs": 1,
-            "obs_mode": "rgbd",
-            "reward_mode": "dense",
-            "control_mode": "pd_ee_delta_pose",
-            "enable_shadow": true,
-            "show_world_frame": false,
-            "show_fps": false,
-            "show_viewer": false,
-            "device": "cuda:0",
-            "front_camera": true,
-            "left_camera": true,
-            "right_camera": false,
-            "top_camera": true,
-            "robot_camera": true,
-            "custome_viewer_res": true,
-            "viewer_res": [
-                320,
-                240
-            ]
-        }
-    },
-    "episodes": [
-        {
-            "episode_id": "traj_0",
-            "elapsed_steps": 499
-        },
-        {
-            "episode_id": "traj_1",
-            "elapsed_steps": 499
-        },
-        {
-            "episode_id": "traj_2",
-            "elapsed_steps": 441
-        },
-        {
-            "episode_id": "traj_3",
-            "elapsed_steps": 525
-        },
-        {
-            "episode_id": "traj_4",
-            "elapsed_steps": 506
-        },
-        {
-            "episode_id": "traj_5",
-            "elapsed_steps": 663
-        },
-        {
-            "episode_id": "traj_6",
-            "elapsed_steps": 506
-        },
-        {
-            "episode_id": "traj_7",
-            "elapsed_steps": 516
-        },
-        {
-            "episode_id": "traj_8",
-            "elapsed_steps": 530
-        },
-        {
-            "episode_id": "traj_9",
-            "elapsed_steps": 529
-        },
-        {
-            "episode_id": "traj_10",
-            "elapsed_steps": 517
-        },
-        {
-            "episode_id": "traj_11",
-            "elapsed_steps": 523
-        },
-        {
-            "episode_id": "traj_12",
-            "elapsed_steps": 508
-        },
-        {
-            "episode_id": "traj_13",
-            "elapsed_steps": 508
-        },
-        {
-            "episode_id": "traj_14",
-            "elapsed_steps": 472
-        },
-        {
-            "episode_id": "traj_15",
-            "elapsed_steps": 576
-        },
-        {
-            "episode_id": "traj_16",
-            "elapsed_steps": 544
-        },
-        {
-            "episode_id": "traj_17",
-            "elapsed_steps": 477
-        },
-        {
-            "episode_id": "traj_18",
-            "elapsed_steps": 575
-        },
-        {
-            "episode_id": "traj_19",
-            "elapsed_steps": 520
-        }
-    ]
-}
\ No newline at end of file
diff --git a/norm_stats.json b/norm_stats.json
deleted file mode 100644
index 5cc74af54185d677ff5725358a3e61026f84a201..0000000000000000000000000000000000000000
--- a/norm_stats.json
+++ /dev/null
@@ -1,337 +0,0 @@
-{
-  "count": 10434,
-  "target_image_size": [
-    192,
-    256
-  ],
-  "cameras": [
-    "front_camera",
-    "left_camera",
-    "robot_camera",
-    "top_camera"
-  ],
-  "state_dim": 64,
-  "action_dim": 22,
-  "state_mean": [
-    0.20225466939645237,
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-    1.0,
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-  "action_mean": [
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-  "action_std": [
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-  ],
-  "state_norm_policy": "continuous_only",
-  "state_fields": [
-    {
-      "path": "obs/agent/qpos",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 23,
-      "slice": [
-        0,
-        23
-      ]
-    },
-    {
-      "path": "obs/agent/qvel",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 23,
-      "slice": [
-        23,
-        46
-      ]
-    },
-    {
-      "path": "obs/extra/depth_progress",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 1,
-      "slice": [
-        46,
-        47
-      ]
-    },
-    {
-      "path": "obs/extra/hammer_nail_err",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 3,
-      "slice": [
-        47,
-        50
-      ]
-    },
-    {
-      "path": "obs/extra/hammer_reach_err",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 3,
-      "slice": [
-        50,
-        53
-      ]
-    },
-    {
-      "path": "obs/extra/hammer_tool_pos",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 3,
-      "slice": [
-        53,
-        56
-      ]
-    },
-    {
-      "path": "obs/extra/is_nail_driven",
-      "dtype": "bool",
-      "kind": "bool",
-      "dim": 1,
-      "slice": [
-        56,
-        57
-      ]
-    },
-    {
-      "path": "obs/extra/nail_depth",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 1,
-      "slice": [
-        57,
-        58
-      ]
-    },
-    {
-      "path": "obs/extra/nail_target_pos",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 3,
-      "slice": [
-        58,
-        61
-      ]
-    },
-    {
-      "path": "obs/extra/palm_pos",
-      "dtype": "float32",
-      "kind": "continuous",
-      "dim": 3,
-      "slice": [
-        61,
-        64
-      ]
-    }
-  ],
-  "state_norm_slices": [
-    [
-      0,
-      23
-    ],
-    [
-      23,
-      46
-    ],
-    [
-      46,
-      47
-    ],
-    [
-      47,
-      50
-    ],
-    [
-      50,
-      53
-    ],
-    [
-      53,
-      56
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-    [
-      57,
-      58
-    ],
-    [
-      58,
-      61
-    ],
-    [
-      61,
-      64
-    ]
-  ],
-  "notes": "State stats computed ONLY on continuous dims; discrete/bool dims keep raw (mean=0,std=1). All stats computed over aligned length T (drop last obs to align with actions)."
-}
\ No newline at end of file
diff --git a/traj_0.h5 b/traj_0.h5
deleted file mode 100644
index 0c0f72bd5857ccc59c4cfe7eb37ee89029be2ad0..0000000000000000000000000000000000000000
--- a/traj_0.h5
+++ /dev/null
@@ -1,3 +0,0 @@
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diff --git a/traj_0_left_camera.mp4 b/traj_0_left_camera.mp4
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-version https://git-lfs.github.com/spec/v1
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deleted file mode 100644
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