Category: <b>disk I/O enhancements</b>
<p>
<pre><b>INT 13 - DISK - ??? (Western Digital "Super BIOS")</b>

	AH = 20h
	???
Return: ???
Notes:	returns some kind of status related to whether the drive contains its
	  default media type
	QEMM v6.00 calls INT 13/AX=2000h/DL=81h in some cases
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