Date:        Wed,  6 Oct 1999 14:12:45 +1000 (EST)
    From:        Daniel Carosone <dan@geek.com.au>
    Message-ID:  <14330.49432.540688.955138@passion.geek.com.au>

  | Hmmm. I have one of these in my alpha, as cd0 (master on second ide
  | channel).  It's idendified as ASUS CD-S400/A V2.1H

I don't, I do have an ASUS 50x (cd2), a XXXX 44x (cd3) both on IDE (both
as slaves) and 2 TEAC 32x (on scsi) (cd0 and cd1)

I don't really know what the XXXX is, if I can believe the box it came in
it is a "Delta 44x", it identifies itself as ...

cd3 at atapibus1 drive 1: <ATAPI 44X CDROM, 44XCDROM Ver2.00, VER-2.0> type 5 cdrom removable
cd3: 32-bits data port
cd3: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2

The ASUS is ...

cd2 at atapibus0 drive 1: <ASUS CD-S500/A, , V2.1H> type 5 cdrom removable
cd2: 32-bits data port
cd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2

and the TEAC drives are both (other than scsi target and cd unit number)

cd0 at scsibus0 targ 3 lun 0: <TEAC, CD-ROM CD-532S, 1.0A> SCSI2 5/cdrom removable

The TEAC drives are on a Qlogic (isp) controller (narrow, slow ...)

I see ...

cd0: 652279808 bytes transferred in 181 secs (3603755 bytes/sec)
cd3: 652279808 bytes transferred in 131 secs (4979235 bytes/sec)
cd2: 652279808 bytes transferred in 121 secs (5390742 bytes/sec)

all from dd if=/dev/rcd${N}a of=/dev/null bs=32k

of the same disc in each case.

So, if theory 2 is correct, it must be something pretty specific to the 40x 
Asus CD, and not to all Asus CDs on IDE.

All this is on bog standard 1.4 NetBSD/alpha.    I intend to stick 1.4.1, and
maybe current as well, sometime soon, if either of those might make a 
difference.

kre