set ytdl_settings to quoted form of (" --ignore-errors --newline " & YTDL_subtitles & YTDL_STEmbed & YTDL_credentials & YTDL_format & YTDL_remux_format & " " & YTDL_Remux_original & YTDL_description & YTDL_audio_only & YTDL_audio_codec & YTDL_over_writes & YTDL_Thumbnail_Write & YTDL_Thumbnail_Embed & YTDL_metadata & YTDL_limit_rate_value & YTDL_verbose & YTDL_Use_Proxy & YTDL_Use_Cookies & YTDL_no_part & YTDL_Custom_Settings & YTDL_output_template & " " & YTDL_QT_Compat & " --batch-file " & YTDL_batch_file)