On Thu, May 25, 2000 at 04:45:44PM -0500, erh@nimenees.com wrote:
> 
> 	If I try to dd from an audio CD I get :
> cd0(ahc0:6:0): illegal request, data = 00 00 17 00 64 00 00 00 00 00 00 00 17 00 00 00 00 00
> 	Is this my drive refusing to read it or is it netbsd not talking
> to it correctly?

uhm...

a) the buffer cache does not deal with 2352 byte blocks 
b) you would have to put the CD into that blocksize first, which each 
   driver does differently. 

> 	Btw, when reading a data CD from /dev/cd0a I get what looks like 4 times
> repeated data in the output image file every 2048 bytes.

something like this is to be expected. The buffer cache does not really deal
with the 2k block size.

>  Reading from rcd0a appears
> to work but when it finished I get this:
> cd0(ahc0:6:0): illegal request, data = 00 01 86 04 c6 02 00 00 00 00 00 01 86 04 00 04 07 80

is this supposed to be the CDB?
	-is