Update README.md

README.md

@@ -45,6 +45,8 @@ data/
 bash scripts/unpack_data.sh /path/to/data
 ```
 
+Some archives are distributed as multi-part files to satisfy Hub file-size limits. `unpack_data.sh` detects these parts automatically and streams them into a single extraction pass.
+
 ### 2. Extract frames for a selected benchmark JSON
 
 ```bash
@@ -71,3 +73,4 @@ Replace `__VLAC2_FRAMES_ROOT__` with the absolute path to the extracted-frame di
 * This release contains the complete raw-data archive set used by the VLAC-Cut benchmark release workflow.
 * The `benchmark_style_all/all` split is larger than the benchmark evaluation subsets and is rebuilt from the full annotation PKL source tree.
 * The benchmark JSON files are pre-generated and do not need to be rebuilt for standard use.
+* Large raw-data archives may appear as split `.part-*` files in `data/`; these are unpacked transparently by the provided script.