# Extract Depth-Only Archives

Archives were created from depth-only copies:
- ArkitScenes depth (lowres_depth) under ./arkitscenes/
- ScanNet++ depth (depth) under ./scannetpp/

## Extract in the current directory
# ArkitScenes depth
cat arkitscenes_depth.tar.zst.* | zstd -d | tar -xf -
# ScanNet++ depth
cat scannetpp_depth.tar.zst.*   | zstd -d | tar -xf -

## Extract to a chosen location (e.g., /data/reason3r/depth_only/)
mkdir -p /data/reason3r/depth_only/
cat arkitscenes_depth.tar.zst.* | zstd -d | tar -xf - -C /data/reason3r/data/
cat scannetpp_depth.tar.zst.*   | zstd -d | tar -xf - -C /data/reason3r/data/

## Verify integrity without extracting
cat arkitscenes_depth.tar.zst.* | zstd -t
cat scannetpp_depth.tar.zst.*   | zstd -t

## List contents
cat arkitscenes_depth.tar.zst.* | zstd -d | tar -tf - | head -40
cat scannetpp_depth.tar.zst.*   | zstd -d | tar -tf - | head -40

## Transfer (rsync preserves chunking)
rsync -avhP arkitscenes_depth.tar.zst.* user@remote:/dest/
rsync -avhP scannetpp_depth.tar.zst.*   user@remote:/dest/

# Notes
# - Chunk filenames end in .000, .001, .002, ...
# - Ensure all sequential chunks are present before extracting.