Rename video references to raw_videos

README.md

@@ -80,7 +80,7 @@ Images are stored in compressed tar shards to avoid hundreds of thousands of sma
 │       └── shards/
 │           ├── ifn-00000.tar.zst
 │           └── ...
-└── videos/
+└── raw_videos/
     ├── README.md
     ├── manifest.json
     ├── bvn/
@@ -98,11 +98,11 @@ Current shard counts:
 | `bvn` | 8 | 14,597,684,355 |
 | `ifn` | 9 | 16,623,840,035 |
 
-## Episode Videos
+## Privacy-Processed Raw Videos
 
-The `videos/` directory provides privacy-processed H.264 MP4 files for every released BVN and IFN episode. Video filenames use the same `episode_id` values as the corresponding annotation records. The release contains 5,433 BVN videos and 6,260 IFN videos, all at 256×256 resolution; Revisit episodes are not included.
+The `raw_videos/` directory provides privacy-processed H.264 MP4 files for every released BVN and IFN episode. Video filenames use the same `episode_id` values as the corresponding annotation records. The release contains 5,433 BVN videos and 6,260 IFN videos, all at 256×256 resolution; Revisit episodes are not included.
 
-The prepared video collection combines privacy-processed raw recordings with frame-derived fallbacks where source videos were unavailable. See `videos/README.md` and `videos/manifest.json` for layout, provenance notes, and validation statistics.
+The prepared video collection combines privacy-processed raw recordings with fallback MP4 files reconstructed from the processed 256×256 RGB frames where source videos were unavailable. See `raw_videos/README.md` and `raw_videos/manifest.json` for layout, provenance notes, and validation statistics.
 
 ## Data Format
 

raw_videos/README.md

@@ -1,18 +1,18 @@
-# SparseVideoNav Privacy-Processed Videos
+# SparseVideoNav Privacy-Processed Raw Videos
 
-This directory supplements the the `frames/bvn/` and `frames/ifn/` releases with episode-level MP4 files.
+This directory supplements the `frames/bvn/` and `frames/ifn/` releases with episode-level MP4 files. The name `raw_videos/` refers to videos produced from the raw-recording pipeline; all published files are privacy processed, and this directory does not contain unredacted footage.
 
 - All videos are privacy processed for face and license-plate blurring.
 - All released MP4 files are H.264 at 256×256 resolution.
-- The prepared source collection mixes videos derived from privacy-processed raw recordings with fallback videos reconstructed from processed 256×256 RGB frames.
-- Per-video raw-versus-fallback provenance was not retained by the prepared source collection.
-- Two missing public episodes were reconstructed from their processed RGB frames while aligning this release.
+- Some original source videos were unavailable; their released MP4 files were reconstructed from the privacy-processed 256×256 RGB frames.
+- The prepared source collection mixes these fallback videos with videos derived from privacy-processed raw recordings. Per-video raw-versus-fallback provenance was not retained.
+- Two additional missing public episodes were reconstructed from their processed RGB frames while aligning this release.
 - Revisit episodes are intentionally excluded.
 
 ## Layout
 
 ```text
-videos/
+raw_videos/
 ├── README.md
 ├── manifest.json
 ├── bvn/