Downloads all the music from keygenjukebox.com

KeyGenJukebox Downloader

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Text.RegularExpressions;
using System.IO;

namespace KGJ_DL
{
    class Program
    {
        static void Main(string[] args)
        {
            string
                download_dir = "Downloads/",
                kgj_url = "http://keygenjukebox.com/",
                kgj_subdir = "m/";
            if (!Directory.Exists(download_dir))
                Directory.CreateDirectory(download_dir);
            WebClient wc = new WebClient();
            string data = wc.DownloadString(kgj_url);
            MatchCollection mc = Regex.Matches(data, "value=\".+?\"");
            for (int i = 0; i < mc.Count; i++)
            {
                if (mc[i].Value.EndsWith("mp3\""))
                {
                    string path = mc[i].Value.Substring(7, mc[i].Value.Length - 8);
                    Console.ForegroundColor = ConsoleColor.Green;
                    try
                    {
                        if (!File.Exists(download_dir + path))
                            wc.DownloadFile(kgj_url + kgj_subdir + path, download_dir + path);
                        else
                            Console.ForegroundColor = ConsoleColor.Blue;
                    }
                    catch { Console.ForegroundColor = ConsoleColor.Red; }
                    Console.WriteLine((i + 1).ToString() + ": " + path);
                }
            }
            Console.ReadLine();
        }
    }
}

Call me a n00b, but i'm not sure how to use this script -_-