diff --git a/videos/observation.images.image_episode_000000.mp4 b/videos/chunk-000/observation.images.image/episode_000000.mp4 similarity index 100% rename from videos/observation.images.image_episode_000000.mp4 rename to videos/chunk-000/observation.images.image/episode_000000.mp4 diff --git a/videos/observation.images.image_episode_000001.mp4 b/videos/chunk-000/observation.images.image/episode_000001.mp4 similarity index 100% rename from videos/observation.images.image_episode_000001.mp4 rename to videos/chunk-000/observation.images.image/episode_000001.mp4 diff --git a/videos/observation.images.image_episode_000002.mp4 b/videos/chunk-000/observation.images.image/episode_000002.mp4 similarity index 100% rename from videos/observation.images.image_episode_000002.mp4 rename to videos/chunk-000/observation.images.image/episode_000002.mp4 diff --git a/videos/observation.images.image_episode_000003.mp4 b/videos/chunk-000/observation.images.image/episode_000003.mp4 similarity index 100% rename from videos/observation.images.image_episode_000003.mp4 rename to videos/chunk-000/observation.images.image/episode_000003.mp4 diff --git a/videos/observation.images.image_episode_000004.mp4 b/videos/chunk-000/observation.images.image/episode_000004.mp4 similarity index 100% rename from videos/observation.images.image_episode_000004.mp4 rename to videos/chunk-000/observation.images.image/episode_000004.mp4 diff --git a/videos/observation.images.image_episode_000005.mp4 b/videos/chunk-000/observation.images.image/episode_000005.mp4 similarity index 100% rename from videos/observation.images.image_episode_000005.mp4 rename to videos/chunk-000/observation.images.image/episode_000005.mp4 diff --git a/videos/observation.images.image_episode_000006.mp4 b/videos/chunk-000/observation.images.image/episode_000006.mp4 similarity index 100% rename from videos/observation.images.image_episode_000006.mp4 rename to videos/chunk-000/observation.images.image/episode_000006.mp4 diff --git a/videos/observation.images.image_episode_000007.mp4 b/videos/chunk-000/observation.images.image/episode_000007.mp4 similarity index 100% rename from videos/observation.images.image_episode_000007.mp4 rename to videos/chunk-000/observation.images.image/episode_000007.mp4 diff --git a/videos/observation.images.image_episode_000008.mp4 b/videos/chunk-000/observation.images.image/episode_000008.mp4 similarity index 100% rename from videos/observation.images.image_episode_000008.mp4 rename to videos/chunk-000/observation.images.image/episode_000008.mp4 diff --git a/videos/observation.images.image_episode_000009.mp4 b/videos/chunk-000/observation.images.image/episode_000009.mp4 similarity index 100% rename from videos/observation.images.image_episode_000009.mp4 rename to videos/chunk-000/observation.images.image/episode_000009.mp4 diff --git a/videos/observation.images.image_episode_000010.mp4 b/videos/chunk-000/observation.images.image/episode_000010.mp4 similarity index 100% rename from videos/observation.images.image_episode_000010.mp4 rename to videos/chunk-000/observation.images.image/episode_000010.mp4 diff --git a/videos/observation.images.image_episode_000011.mp4 b/videos/chunk-000/observation.images.image/episode_000011.mp4 similarity index 100% rename from videos/observation.images.image_episode_000011.mp4 rename to videos/chunk-000/observation.images.image/episode_000011.mp4 diff --git a/videos/observation.images.image_episode_000012.mp4 b/videos/chunk-000/observation.images.image/episode_000012.mp4 similarity index 100% rename from videos/observation.images.image_episode_000012.mp4 rename to videos/chunk-000/observation.images.image/episode_000012.mp4 diff --git a/videos/observation.images.image_episode_000013.mp4 b/videos/chunk-000/observation.images.image/episode_000013.mp4 similarity index 100% rename from videos/observation.images.image_episode_000013.mp4 rename to videos/chunk-000/observation.images.image/episode_000013.mp4 diff --git a/videos/observation.images.image_episode_000014.mp4 b/videos/chunk-000/observation.images.image/episode_000014.mp4 similarity index 100% rename from videos/observation.images.image_episode_000014.mp4 rename to videos/chunk-000/observation.images.image/episode_000014.mp4 diff --git a/videos/observation.images.image_episode_000015.mp4 b/videos/chunk-000/observation.images.image/episode_000015.mp4 similarity index 100% rename from videos/observation.images.image_episode_000015.mp4 rename to videos/chunk-000/observation.images.image/episode_000015.mp4 diff --git a/videos/observation.images.image_episode_000016.mp4 b/videos/chunk-000/observation.images.image/episode_000016.mp4 similarity index 100% rename from videos/observation.images.image_episode_000016.mp4 rename to videos/chunk-000/observation.images.image/episode_000016.mp4 diff --git a/videos/observation.images.image_episode_000017.mp4 b/videos/chunk-000/observation.images.image/episode_000017.mp4 similarity index 100% rename from videos/observation.images.image_episode_000017.mp4 rename to videos/chunk-000/observation.images.image/episode_000017.mp4 diff --git a/videos/observation.images.image_episode_000018.mp4 b/videos/chunk-000/observation.images.image/episode_000018.mp4 similarity index 100% rename from videos/observation.images.image_episode_000018.mp4 rename to videos/chunk-000/observation.images.image/episode_000018.mp4 diff --git a/videos/observation.images.image_episode_000019.mp4 b/videos/chunk-000/observation.images.image/episode_000019.mp4 similarity index 100% rename from videos/observation.images.image_episode_000019.mp4 rename to videos/chunk-000/observation.images.image/episode_000019.mp4 diff --git a/videos/observation.images.image_episode_000020.mp4 b/videos/chunk-000/observation.images.image/episode_000020.mp4 similarity index 100% rename from videos/observation.images.image_episode_000020.mp4 rename to videos/chunk-000/observation.images.image/episode_000020.mp4 diff --git a/videos/observation.images.image_episode_000021.mp4 b/videos/chunk-000/observation.images.image/episode_000021.mp4 similarity index 100% rename from videos/observation.images.image_episode_000021.mp4 rename to videos/chunk-000/observation.images.image/episode_000021.mp4 diff --git a/videos/observation.images.image_episode_000022.mp4 b/videos/chunk-000/observation.images.image/episode_000022.mp4 similarity index 100% rename from videos/observation.images.image_episode_000022.mp4 rename to videos/chunk-000/observation.images.image/episode_000022.mp4 diff --git a/videos/observation.images.image_episode_000023.mp4 b/videos/chunk-000/observation.images.image/episode_000023.mp4 similarity index 100% rename from videos/observation.images.image_episode_000023.mp4 rename to videos/chunk-000/observation.images.image/episode_000023.mp4 diff --git a/videos/observation.images.image_episode_000024.mp4 b/videos/chunk-000/observation.images.image/episode_000024.mp4 similarity index 100% rename from videos/observation.images.image_episode_000024.mp4 rename to videos/chunk-000/observation.images.image/episode_000024.mp4 diff --git a/videos/observation.images.image_episode_000025.mp4 b/videos/chunk-000/observation.images.image/episode_000025.mp4 similarity index 100% rename from videos/observation.images.image_episode_000025.mp4 rename to videos/chunk-000/observation.images.image/episode_000025.mp4 diff --git a/videos/observation.images.image_episode_000026.mp4 b/videos/chunk-000/observation.images.image/episode_000026.mp4 similarity index 100% rename from videos/observation.images.image_episode_000026.mp4 rename to videos/chunk-000/observation.images.image/episode_000026.mp4 diff --git a/videos/observation.images.image_episode_000027.mp4 b/videos/chunk-000/observation.images.image/episode_000027.mp4 similarity index 100% rename from videos/observation.images.image_episode_000027.mp4 rename to videos/chunk-000/observation.images.image/episode_000027.mp4 diff --git a/videos/observation.images.image_episode_000028.mp4 b/videos/chunk-000/observation.images.image/episode_000028.mp4 similarity index 100% rename from videos/observation.images.image_episode_000028.mp4 rename to videos/chunk-000/observation.images.image/episode_000028.mp4 diff --git a/videos/observation.images.image_episode_000029.mp4 b/videos/chunk-000/observation.images.image/episode_000029.mp4 similarity index 100% rename from videos/observation.images.image_episode_000029.mp4 rename to videos/chunk-000/observation.images.image/episode_000029.mp4 diff --git a/videos/observation.images.image_episode_000030.mp4 b/videos/chunk-000/observation.images.image/episode_000030.mp4 similarity index 100% rename from videos/observation.images.image_episode_000030.mp4 rename to videos/chunk-000/observation.images.image/episode_000030.mp4 diff --git a/videos/observation.images.image_episode_000031.mp4 b/videos/chunk-000/observation.images.image/episode_000031.mp4 similarity index 100% rename from videos/observation.images.image_episode_000031.mp4 rename to videos/chunk-000/observation.images.image/episode_000031.mp4 diff --git a/videos/observation.images.image_episode_000032.mp4 b/videos/chunk-000/observation.images.image/episode_000032.mp4 similarity index 100% rename from videos/observation.images.image_episode_000032.mp4 rename to videos/chunk-000/observation.images.image/episode_000032.mp4 diff --git a/videos/observation.images.image_episode_000033.mp4 b/videos/chunk-000/observation.images.image/episode_000033.mp4 similarity index 100% rename from videos/observation.images.image_episode_000033.mp4 rename to videos/chunk-000/observation.images.image/episode_000033.mp4 diff --git a/videos/observation.images.image_episode_000034.mp4 b/videos/chunk-000/observation.images.image/episode_000034.mp4 similarity index 100% rename from videos/observation.images.image_episode_000034.mp4 rename to videos/chunk-000/observation.images.image/episode_000034.mp4 diff --git a/videos/observation.images.image_episode_000035.mp4 b/videos/chunk-000/observation.images.image/episode_000035.mp4 similarity index 100% rename from videos/observation.images.image_episode_000035.mp4 rename to videos/chunk-000/observation.images.image/episode_000035.mp4 diff --git a/videos/observation.images.image_episode_000036.mp4 b/videos/chunk-000/observation.images.image/episode_000036.mp4 similarity index 100% rename from videos/observation.images.image_episode_000036.mp4 rename to videos/chunk-000/observation.images.image/episode_000036.mp4 diff --git a/videos/observation.images.image_episode_000037.mp4 b/videos/chunk-000/observation.images.image/episode_000037.mp4 similarity index 100% rename from videos/observation.images.image_episode_000037.mp4 rename to videos/chunk-000/observation.images.image/episode_000037.mp4 diff --git a/videos/observation.images.image_episode_000038.mp4 b/videos/chunk-000/observation.images.image/episode_000038.mp4 similarity index 100% rename from videos/observation.images.image_episode_000038.mp4 rename to videos/chunk-000/observation.images.image/episode_000038.mp4 diff --git a/videos/observation.images.image_episode_000039.mp4 b/videos/chunk-000/observation.images.image/episode_000039.mp4 similarity index 100% rename from videos/observation.images.image_episode_000039.mp4 rename to videos/chunk-000/observation.images.image/episode_000039.mp4 diff --git a/videos/observation.images.image_episode_000040.mp4 b/videos/chunk-000/observation.images.image/episode_000040.mp4 similarity index 100% rename from videos/observation.images.image_episode_000040.mp4 rename to videos/chunk-000/observation.images.image/episode_000040.mp4 diff --git a/videos/observation.images.image_episode_000041.mp4 b/videos/chunk-000/observation.images.image/episode_000041.mp4 similarity index 100% rename from videos/observation.images.image_episode_000041.mp4 rename to videos/chunk-000/observation.images.image/episode_000041.mp4 diff --git a/videos/observation.images.image_episode_000042.mp4 b/videos/chunk-000/observation.images.image/episode_000042.mp4 similarity index 100% rename from videos/observation.images.image_episode_000042.mp4 rename to videos/chunk-000/observation.images.image/episode_000042.mp4 diff --git a/videos/observation.images.image_episode_000043.mp4 b/videos/chunk-000/observation.images.image/episode_000043.mp4 similarity index 100% rename from videos/observation.images.image_episode_000043.mp4 rename to videos/chunk-000/observation.images.image/episode_000043.mp4 diff --git a/videos/observation.images.image_episode_000044.mp4 b/videos/chunk-000/observation.images.image/episode_000044.mp4 similarity index 100% rename from videos/observation.images.image_episode_000044.mp4 rename to videos/chunk-000/observation.images.image/episode_000044.mp4 diff --git a/videos/observation.images.image_episode_000045.mp4 b/videos/chunk-000/observation.images.image/episode_000045.mp4 similarity index 100% rename from videos/observation.images.image_episode_000045.mp4 rename to videos/chunk-000/observation.images.image/episode_000045.mp4 diff --git a/videos/observation.images.image_episode_000046.mp4 b/videos/chunk-000/observation.images.image/episode_000046.mp4 similarity index 100% rename from videos/observation.images.image_episode_000046.mp4 rename to videos/chunk-000/observation.images.image/episode_000046.mp4 diff --git a/videos/observation.images.image_episode_000047.mp4 b/videos/chunk-000/observation.images.image/episode_000047.mp4 similarity index 100% rename from videos/observation.images.image_episode_000047.mp4 rename to videos/chunk-000/observation.images.image/episode_000047.mp4 diff --git a/videos/observation.images.image_episode_000048.mp4 b/videos/chunk-000/observation.images.image/episode_000048.mp4 similarity index 100% rename from videos/observation.images.image_episode_000048.mp4 rename to videos/chunk-000/observation.images.image/episode_000048.mp4 diff --git a/videos/observation.images.image_episode_000049.mp4 b/videos/chunk-000/observation.images.image/episode_000049.mp4 similarity index 100% rename from videos/observation.images.image_episode_000049.mp4 rename to videos/chunk-000/observation.images.image/episode_000049.mp4 diff --git a/videos/observation.images.image_episode_000050.mp4 b/videos/chunk-000/observation.images.image/episode_000050.mp4 similarity index 100% rename from videos/observation.images.image_episode_000050.mp4 rename to videos/chunk-000/observation.images.image/episode_000050.mp4 diff --git a/videos/observation.images.image_episode_000051.mp4 b/videos/chunk-000/observation.images.image/episode_000051.mp4 similarity index 100% rename from videos/observation.images.image_episode_000051.mp4 rename to videos/chunk-000/observation.images.image/episode_000051.mp4 diff --git a/videos/observation.images.image_episode_000052.mp4 b/videos/chunk-000/observation.images.image/episode_000052.mp4 similarity index 100% rename from videos/observation.images.image_episode_000052.mp4 rename to videos/chunk-000/observation.images.image/episode_000052.mp4 diff --git a/videos/observation.images.image_episode_000053.mp4 b/videos/chunk-000/observation.images.image/episode_000053.mp4 similarity index 100% rename from videos/observation.images.image_episode_000053.mp4 rename to videos/chunk-000/observation.images.image/episode_000053.mp4 diff --git a/videos/observation.images.image_episode_000054.mp4 b/videos/chunk-000/observation.images.image/episode_000054.mp4 similarity index 100% rename from videos/observation.images.image_episode_000054.mp4 rename to videos/chunk-000/observation.images.image/episode_000054.mp4 diff --git a/videos/observation.images.image_episode_000055.mp4 b/videos/chunk-000/observation.images.image/episode_000055.mp4 similarity index 100% rename from videos/observation.images.image_episode_000055.mp4 rename to videos/chunk-000/observation.images.image/episode_000055.mp4 diff --git a/videos/observation.images.image_episode_000056.mp4 b/videos/chunk-000/observation.images.image/episode_000056.mp4 similarity index 100% rename from videos/observation.images.image_episode_000056.mp4 rename to videos/chunk-000/observation.images.image/episode_000056.mp4 diff --git a/videos/observation.images.image_episode_000057.mp4 b/videos/chunk-000/observation.images.image/episode_000057.mp4 similarity index 100% rename from videos/observation.images.image_episode_000057.mp4 rename to videos/chunk-000/observation.images.image/episode_000057.mp4 diff --git a/videos/observation.images.image_episode_000058.mp4 b/videos/chunk-000/observation.images.image/episode_000058.mp4 similarity index 100% rename from videos/observation.images.image_episode_000058.mp4 rename to videos/chunk-000/observation.images.image/episode_000058.mp4 diff --git a/videos/observation.images.image_episode_000059.mp4 b/videos/chunk-000/observation.images.image/episode_000059.mp4 similarity index 100% rename from videos/observation.images.image_episode_000059.mp4 rename to videos/chunk-000/observation.images.image/episode_000059.mp4 diff --git a/videos/observation.images.image_episode_000060.mp4 b/videos/chunk-000/observation.images.image/episode_000060.mp4 similarity index 100% rename from videos/observation.images.image_episode_000060.mp4 rename to videos/chunk-000/observation.images.image/episode_000060.mp4 diff --git a/videos/observation.images.image_episode_000061.mp4 b/videos/chunk-000/observation.images.image/episode_000061.mp4 similarity index 100% rename from videos/observation.images.image_episode_000061.mp4 rename to videos/chunk-000/observation.images.image/episode_000061.mp4 diff --git a/videos/observation.images.image_episode_000062.mp4 b/videos/chunk-000/observation.images.image/episode_000062.mp4 similarity index 100% rename from videos/observation.images.image_episode_000062.mp4 rename to videos/chunk-000/observation.images.image/episode_000062.mp4 diff --git a/videos/observation.images.image_episode_000063.mp4 b/videos/chunk-000/observation.images.image/episode_000063.mp4 similarity index 100% rename from videos/observation.images.image_episode_000063.mp4 rename to videos/chunk-000/observation.images.image/episode_000063.mp4 diff --git a/videos/observation.images.image_episode_000064.mp4 b/videos/chunk-000/observation.images.image/episode_000064.mp4 similarity index 100% rename from videos/observation.images.image_episode_000064.mp4 rename to videos/chunk-000/observation.images.image/episode_000064.mp4 diff --git a/videos/observation.images.image_episode_000065.mp4 b/videos/chunk-000/observation.images.image/episode_000065.mp4 similarity index 100% rename from videos/observation.images.image_episode_000065.mp4 rename to videos/chunk-000/observation.images.image/episode_000065.mp4 diff --git a/videos/observation.images.image_episode_000066.mp4 b/videos/chunk-000/observation.images.image/episode_000066.mp4 similarity index 100% rename from videos/observation.images.image_episode_000066.mp4 rename to videos/chunk-000/observation.images.image/episode_000066.mp4 diff --git a/videos/observation.images.image_episode_000067.mp4 b/videos/chunk-000/observation.images.image/episode_000067.mp4 similarity index 100% rename from videos/observation.images.image_episode_000067.mp4 rename to videos/chunk-000/observation.images.image/episode_000067.mp4 diff --git a/videos/observation.images.image_episode_000068.mp4 b/videos/chunk-000/observation.images.image/episode_000068.mp4 similarity index 100% rename from videos/observation.images.image_episode_000068.mp4 rename to videos/chunk-000/observation.images.image/episode_000068.mp4 diff --git a/videos/observation.images.image_episode_000069.mp4 b/videos/chunk-000/observation.images.image/episode_000069.mp4 similarity index 100% rename from videos/observation.images.image_episode_000069.mp4 rename to videos/chunk-000/observation.images.image/episode_000069.mp4