Archive.org Gamecube Collection Downloader -TizzyT

using System;
using System.Net;

namespace GameCubeDownloader
{
    class Program
    {
        static void Main(string[] args)
        {
            string href = "<td><a href=\"";
            string slashA = "</a>";
            string delimiter = "\">";
            string URL = "https://archive.org/download/GamecubeCollectionByGhostware/";
            string Root = System.IO.Directory.GetCurrentDirectory();

            string downloadFolder = "/Downloaded/";
            string temporaryFolder = "/temp/";

            string[] source;
            using (WebClient client = new WebClient())
                source = client.DownloadString(URL).Split(new string[] { href }, StringSplitOptions.RemoveEmptyEntries);

            if (!System.IO.Directory.Exists(Root + downloadFolder)) System.IO.Directory.CreateDirectory(Root + downloadFolder);
            if (!System.IO.Directory.Exists(Root + temporaryFolder)) System.IO.Directory.CreateDirectory(Root + temporaryFolder);

            foreach (string snippet in source)
            {
                string file = "N/A";
                try
                {
                    string[] important = snippet.Split(new string[] { slashA }, StringSplitOptions.RemoveEmptyEntries)[0].Split(new string[] { delimiter }, StringSplitOptions.RemoveEmptyEntries);
                    if (important.Length == 2)
                    {
                        file = important[1];
                        if (important[0].EndsWith(".iso"))
                        {
                            if (System.IO.File.Exists(Root + downloadFolder + important[1]))
                            {
                                Console.WriteLine("Already downloaded: " + important[1] + ", Skipping");
                                continue;
                            }
                            while (true)
                            {
                                if (System.IO.File.Exists(Root + temporaryFolder + important[0]))
                                {
                                    System.IO.File.Delete(temporaryFolder + important[1]);
                                    Console.WriteLine("Retrying Download: " + important[1]);
                                }
                                else
                                {
                                    Console.WriteLine("Downloading: " + important[1]);
                                }
                                using (WebClient client = new WebClient())
                                    client.DownloadFile(URL + important[0], Root + temporaryFolder + important[1]);
                                if (new System.IO.FileInfo(Root + temporaryFolder + important[1]).Length > 1)
                                {
                                    System.IO.File.Move(Root + temporaryFolder + important[1], Root + downloadFolder + important[1]);
                                    Console.WriteLine("Finshished downloading: " + important[1]);
                                    break;
                                }
                                else
                                {
                                    Console.WriteLine("Download Unsucessful: " + important[1]);
                                }
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    System.IO.File.AppendAllText(Root + "/Log.txt", "[" + DateTime.Now.ToShortTimeString() + "] " + file + " : " + ex.Message);
                }
            }
        }
    }
}