Find the Root Folder Name of the SD Card.

void getSdCardPath()

{
DirectoryInfo rootDir = new DirectoryInfo(@"\");

FileAttributes attrStorageCard = FileAttributes.Directory |
FileAttributes.Temporary;

ArrayList myAttr = new ArrayList();

foreach( FileSystemInfo fsi in rootDir.GetFileSystemInfos() )
{
if ( (fsi.Attributes & attrStorageCard) == attrStorageCard )
{
//Found storage card
myAttr.Add(fsi.FullName.ToString());
}
}

}