function Get-FolderSizeMb {
    <#
.SYNOPSIS
    Retrieves the size in MB of the specified folder.

.PARAMETER Path
    The path to evaluate.

.PARAMETER ComputerName
    The name of the server where the operation should be performed.  If omitted, defaults to the current host.

.OUTPUTS
    The size of the specified folder in MB.

.EXAMPLE
    Get-FolderSizeMb -Path 'C:\Temp'

129.49

.EXAMPLE
    Get-FolderSizeMb -Path 'C:\This\Path\Does\Not\Exist'

0
#>
    [CmdLetBinding()]
    [OutputType([decimal])]
    param(
        [Parameter(Mandatory = $true)]
        [ValidateNotNullOrEmpty()]
        [string] $Path,

        [Parameter(Mandatory = $false)]
        [string] $ComputerName = $null
    )

    $scriptBlock = {
        param($p)

        if ( Test-Path $p -PathType Container ) {

            return [System.Math]::Round( ((Get-ChildItem -Path $p -Recurse -ErrorAction SilentlyContinue -Force) | Measure-Object -Property Length -Sum).Sum / 1Mb, 2)

        } else {

            return 0
        }
    }

    # Determine if we are executing remotely.
    $splatParams = @{}
    if ( -not (Test-StringIsNullOrWhitespace -Value $ComputerName) -and -not (Compare-StringToLocalMachineIdentifiers -stringToCheck $ComputerName )) {

        $splatParams['ComputerName'] = "$ComputerName"
    }

    $result = Invoke-Command -ScriptBlock $scriptBlock -ArgumentList $Path @splatParams
    return $result
}