Clarify archive paths and CSV path columns

README.md

@@ -36,10 +36,12 @@ This release contains two compressed archives:
 | `bowel_retraction_fixed_viewpoint.tar.zst` | fixed_viewpoint | `v1/`, `v2/` |
 | `bowel_retraction_random_viewpoint.tar.zst` | random_viewpoint | `multicam/multi_camera_exp/`, `multicam/multi_camera_exp2/` |
 
-Archive paths are relative to the dataset root and preserve the raw source folders. For example, files inside the fixed-viewpoint archive are stored as `v1/...` and `v2/...`, not as absolute paths.
+Archive member paths are relative to the dataset root and preserve the raw source folders. For example, files inside the fixed-viewpoint archive are stored as `v1/...` and `v2/...`, not as absolute tar paths.
 
 `v1` and `v2` are historical raw folder names for two fixed-viewpoint recording days. They are not dataset version numbers. Together, these two folders form the fixed-viewpoint split used in the paper.
 
+Note: some CSV files, especially `episode.csv`, include path columns such as `frameLeftRectifiedPath` and `frameRightRectifiedPath` that currently contain the original absolute acquisition paths from the NCT storage system, for example `/mnt/cluster/datasets/bowel_retraction/...`. Users should resolve these paths relative to the extracted archive folder by replacing the original dataset prefix with the local extraction root.
+
 Additional release files:
 
 - `manifest.csv`: archive-level manifest.