HOWTO: Get root directory of the CD-ROM drive knowing SCSI addres

Hi,

I need to get root directory of the CD-ROM (like "G:") knowing SCSI
address CD-ROM device sits at. Easy to do if CD-ROM has assigned drive
letter (CreateFile/DeviceIoControl( IOCTL_SCSI_GET_ADDRESS) … ). But
what do to if the drive is mounted to free NTFS folder (UNIX-style mount)?
Is there any particual FSCTL_XXX for this? Any ideas how to do this?

Thanks for help!

Anton Kolomyeytsev