In message <20000525192232.B288@beverly.kleinbus.org>, Ignatios Souvatzis write
s:
>Use the raw device for things like this, until the blocksize independent
>buffer cache stuff is there.

Which raw device?

$ dd if=/dev/rcd0a of=cd
dd: /dev/rcd0a: Invalid argument
0+0 records in
0+0 records out

-s