powershell command for getting files in subfolders in a table with parent folder in another column

get_files_with_parent_folder.ps1

dir *.mp4 -rec -file |
select-object @{
Name="folder";
Expression = {Split-Path (Split-Path $_.Fullname -parent) -leaf}
},name

# EXAMPLE OUTPUT
folder                               Name
------                               ----
10. Course Overview                  10. Course Overview.mp4
11. Course Introduction              10. Course Introduction.mp4
12. Getting Docker                   10. Module Overview.mp4
12. Getting Docker                   11. Docker Desktop.mp4
12. Getting Docker                   12. Play with Docker.mp4
13. Deploying a Containerized App    10. Module Overview.mp4
13. Deploying a Containerized App    11. Warp Speed Run-through.mp4
13. Deploying a Containerized App    12. Containerizing an App.mp4
13. Deploying a Containerized App    13. Hosting on a Registry.mp4
13. Deploying a Containerized App    14. Running a Containerized App.mp4
13. Deploying a Containerized App    15. Managing a Containerized App.mp4
13. Deploying a Containerized App    16. Recap.mp4
14. Microservices and the Real World 10. Module Overview.mp4
14. Microservices and the Real World 11. Cloud-native Microservices.mp4
14. Microservices and the Real World 12. Multi-container Apps with Docker Compose.mp4
14. Microservices and the Real World 13. Taking Things to the Next Level with Docker Swarm.mp4
14. Microservices and the Real World 14. Microservices and Docker Services.mp4
14. Microservices and the Real World 15. Multi-container Apps with Docker Stacks.mp4
15. What's Next-                     10. What's Next-.mp4