C#

I am creating an application using c# winform to create and mount ISO files like wincdemu. I am able to create the ISO file and mount it like a local drive. I want to mount the image with disc type CD-ROM/DVD-ROM. I am using AttachVirtualDisk() to mount the image.

Is there any API/library support to mount the image with disc type CD-ROM/CD-R/CD-RW/DVD-ROM/DVD-RAM etc. ?

I appreciate any advice.

static void Main(string[] args)
{
string n = "Banana";
int num=CountOccurrences(n,'a');
Console.WriteLine(num);
        }
        static int CountOccurrences(string text, char digit)
        {
            
            for (int i=0 ; i < text.Length; i++)
            {

                if (text[i] == digit)
                {
                    i++;
                }
                return i;

            }