Fix Suno browser downloads and metadata tags

process-suno-library.ps1

@@ -268,14 +268,14 @@ function Invoke-DownloadWithRetry {
 
 function Add-MetadataArg {
     param(
-        [System.Collections.Generic.List[string]]$Args,
+        [System.Collections.Generic.List[string]]$ArgList,
         [string]$Key,
         [string]$Value
     )
 
     if ($Value) {
-        $Args.Add("-metadata")
-        $Args.Add("$Key=$Value")
+        $ArgList.Add("-metadata")
+        $ArgList.Add("$Key=$Value")
     }
 }
 
@@ -456,7 +456,7 @@ foreach ($track in $tracks) {
     if ($imageUrl) {
         $coverDownloaded = Invoke-Download $imageUrl $rawCoverFile
         if ($coverDownloaded) {
-            & $ffmpeg -hide_banner -y -i $rawCoverFile -frames:v 1 $trackCoverFile
+            & $ffmpeg -hide_banner -y -i $rawCoverFile -frames:v 1 -update 1 $trackCoverFile
             $coverOk = ($LASTEXITCODE -eq 0) -and (Test-Path -LiteralPath $trackCoverFile)
             if (-not $coverOk) {
                 Copy-Item -LiteralPath $rawCoverFile -Destination $trackCoverFile -Force