How can i slow the CDROM drive ?
Why ? Because my cheap DVD drive is terrible NOISY at maximum speed.
In Linux i done this by use an <hdparm> utility. But in NetBSD ?

cd0 at atapibus0 drive 0: <MATSHITADVD-ROM SR-8586, , 3Y19> type 5 cdrom removab
le
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd1 at atapibus0 drive 1: <LITE-ON LTR-48125S, , 1S05> type 5 cdrom removable
cd1: 32-bit data port
cd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)

Im use i386 of course.