How to get complete details of all Drives on the system

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WinApps
{
    public partial class Form1 : Form
    {
        
/************************************************
* Topic : How to get complete details of all Drives on the system
* Reference Required: System.IO
* Author : kalit sikka
* For : http://eggheadcafe.com
* **********************************************/
        
         
         public Form1()
        {
             InitializeComponent();
        }

         private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = FormTitle;
             BindComboWithDrives();  
         }

         ///
        /// Filling Combo with Drive names
        ///
        private void BindComboWithDrives()
        {
            DriveInfo[] di = DriveInfo.GetDrives();

             foreach (DriveInfo itemDrive in di)
            {
                 cboDrive.Items.Add(itemDrive.Name);
             }

             cboDrive.SelectedIndex=0;
        }

         ///
        /// Filling Drive info into RichTextbox control
        ///
        ///
        ///
        private void cboDrive_SelectedIndexChanged(object sender, EventArgs e)
        {
            rtbDetails.Clear();
            
            DriveInfo di = new DriveInfo(cboDrive.SelectedItem.ToString());

            rtbDetails.Text =  string.Format("Available Free Space: " + di.AvailableFreeSpace + "\n" +
                 "Drive Format: " + di.DriveFormat + "\n" +
                 "Drive Type: " + di.DriveType + "\n" +
                 "Is Ready: " + di.IsReady.ToString() + "\n" +
                 "Name: " + di.Name + "\n" +
                 "Root Directory: " + di.RootDirectory + "\n" +
                 "ToString() Value: " + di.ToString() + "\n" +
                 "Total Free Space: " + di.TotalFreeSpace + "\n" +
                 "Total Size: " + di.TotalSize + "\n" +
                 "Volume Label: " + di.VolumeLabel.ToString(), di.Name +
                 " DRIVE INFO");

        }

         private string FormTitle
        {
             get
             {
                  return "Drive Info - Demo App for eggheadCafe.com";
            }
        }

     }
}