I’ve been struggling with AIs for a few days to solve this problem, which I think is very simple but without any results. I think it’s a bug but I can’t detect it.

Every time I download a video with YouTubeDownloader and my CheckedListBox1 boxes are checked, everything downloads correctly, but at the end of the download, when the video file is already in the folder where it was downloaded, it is deleted. However, if I don’t leave any box checked, it downloads the fraction of the video correctly.

And my intention with this app is just to have an app to download small snippets of videos from YouTube without having to use a more robust or heavy application or having to edit the video later to remove parts that I don’t care about.

So I don’t know if I’m setting up the arguments incorrectly or if the bug is in the yt-dlp. And, of course, if it’s a yt-dlp bug, I’ll report it on the project’s github.

Private Sub Btn_Process_Click(sender As Object, e As EventArgs) Handles Btn_Process.Click
    Dim MyExecutable As String = Application.StartupPath & "yt-downloaderyoutube-dl.exe"
    Dim Url As String = Txt_Url.Text.ToString
    Dim MyProcessStArgs As New ProcessStartInfo
    Dim MyAspas As String = """"

    ' Inicializa a string de argumentos com a qualidade de vídeo e o formato desejado
    Dim arguments As New System.Text.StringBuilder()
    arguments.Append("-f ""mp4[height<=720]"" ")

    ' Adiciona parâmetros adicionais dependendo dos itens selecionados
    If CheckedListBox1.CheckedItems.Contains("Description") Then
        arguments.Append("--write-description ")
    End If
    If CheckedListBox1.CheckedItems.Contains("Thumbnail") Then
        arguments.Append("--write-thumbnail ")
    End If
    If CheckedListBox1.CheckedItems.Contains("Subtitle") Then
        arguments.Append("--write-auto-sub --sub-lang en --convert-subs srt ")
    End If
    If CheckedListBox1.CheckedItems.Contains("Audio") Then
        arguments.Append("--extract-audio --audio-format mp3 ")
    End If

    ' Adiciona a fração do vídeo que será extraído
    Dim TimeToTrim As String = Txt_StartTotal.Text & "-" & Txt_EndTotal.Text
    If Not String.IsNullOrWhiteSpace(TimeToTrim) Then
        arguments.Append("--download-sections " & MyAspas & "*" & TimeToTrim & MyAspas & " ")
    End If

    ' Adiciona a URL do vídeo
    arguments.Append(Url)

    ' Configura o processo para iniciar o download
    MyProcessStArgs.Arguments = arguments.ToString()
    MyProcessStArgs.FileName = MyExecutable
    MyProcessStArgs.UseShellExecute = False
    MyProcessStArgs.CreateNoWindow = False

    ' Exibe o argumento completo no Txt_Output para verificação
    Txt_OutPut.Text = MyProcessStArgs.Arguments

    ' Inicia o processo e lê a saída e erros para diagnóstico
    Dim process As Process = process.Start(MyProcessStArgs)
   
    process.WaitForExit()
 
End Sub

First of all, I researched in the following AIs so as not to waste your time,: Mistral, ClaudeIA, ChatGPT, I did a thorough search in the app’s official documentation in the appropriate channel “**https://github.com/yt-dlp/yt-dlp**”, and obviously in the class’s official documentation: https://learn.microsoft.com/en-us/dotnet/api/system.diagnostics.processstartinfo