CD-Rom DLL for easy access to CD-Rom

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

namespace cd_rom_test
{
    public partial class form1 : Form
    {
        CDRom cd_rom;
        public form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            cd_rom = new CDRom();
            RefresH();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            RefresH();
        }
        void RefresH()
        {
            listBox1.Items.Clear();
            listBox1.Items.Add("Cd-Rom Names : ");
            //all cd-roms in an string array
            foreach(string temp in cd_rom.CDRomName)
                listBox1.Items.Add(temp);

            listBox1.Items.Add("---------------------------------------------------------");
            //all drive name
            listBox1.Items.Add("drives : ");
            foreach (string temp in cd_rom.DriveName)
                listBox1.Items.Add(temp);

            listBox1.Items.Add("----------------------------------------------------------");
            //has inserted cd into drive ? false or true
            listBox1.Items.Add("has inserted cd into drive ? ----> " + cd_rom.CdinCDRom.ToString());

            listBox1.Items.Add("-----------------------------------------------------------");
            //if cd is aviliable what's cd name : 
            listBox1.Items.Add("name of cd inserted (label of cd): " + cd_rom.CdName);

            listBox1.Items.Add("------------------------------------------------------------");
            // drive of cd-rom
            listBox1.Items.Add("CD Drive :    " + cd_rom.CdDriveName)
                ;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            cd_rom.CdRomOpening();
        }

        
    }
}