DOS / Interrupts / Int 2F / 15/0E


          CD-ROM 2.00 Interface - Get/Set Volume Descriptor Preference

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	15h		0Eh		Error Code				AX
BX	Subfunction								BX
CX	Drive Number (0=A)								CX
DX	Parameters				Returns				DX
ES:DI					Set if Error				CF

Subfunctions

    00h     Get Preference    DX = 0000h

    01h     Set Preference    DH = Volume Descriptor Preference
                                  01h = Primary Volume Descriptor
                                  02h = Secondary Volume Descriptor
                              DL = Supplementary Volume Descriptor Preference
                                  01h = Shift-KANJI