Add troubleshooting section to README

README.md

@@ -368,6 +368,40 @@ rm videos_lite.tar
 
 > **Note:** The archive is structured so lite videos are in the first parts (00-03). This means if you download the full version, you automatically have the lite videos too!
 
+#### Troubleshooting Extraction Issues
+
+If you encounter `"This does not look like a tar archive"` or other errors:
+
+1. **Verify checksums** to check download integrity:
+   ```bash
+   cd HERBench/videos
+   sha256sum -c videos.tar.checksums.txt
+   ```
+
+2. **Check file format** of downloaded parts:
+   ```bash
+   file videos.tar.part.00
+   # Expected: "POSIX tar archive (GNU)" or similar
+   ```
+
+3. **Test before full extraction**:
+   ```bash
+   cat videos.tar.part.{00..03} > videos_lite.tar
+   tar -tvf videos_lite.tar | head -10
+   # Should list video files like: HD_EPIC/P01/P01-*.mp4
+   ```
+
+4. **Re-download** specific parts if checksums fail:
+   ```bash
+   huggingface-cli download DanBenAmi/HERBench \
+       --repo-type dataset \
+       --include "videos/videos.tar.part.00" \
+       --local-dir HERBench \
+       --force-download
+   ```
+
+If issues persist, please [open an issue on GitHub](https://github.com/DanBenAmi/HERBench/issues).
+
 ### 3. Load and Use the Data
 
 ```python