Cambiar el nombre de PowerShell recursivo
Get-ChildItem -File -Recurse | % { Rename-Item -Path $_.PSPath -NewName $_.Name.replace(".mkv.mp4",".mp4")}
Talented Tern
Get-ChildItem -File -Recurse | % { Rename-Item -Path $_.PSPath -NewName $_.Name.replace(".mkv.mp4",".mp4")}