What exactly is the difference between, say /dev/rcd0a and /dev/cd0a? I
notice that if I dd from rcd0a, I have to set bs=2k, while I can use the
default 512 byte blocksize with cd0a. However, "dd if=/dev/rcd0a bs=2k"
and "dd if=/dev/cd0a" don't return the same data. Even "dd if=/dev/cd0a
bs=2k" gives different data than reading from the raw device, which seems
rather strange to me...

I ask because I compiled the "hfsutils" package, since I wanted to read
Mac HFS CDs on my pentium, but hfsutils always reads 512-byte blocks.
Using rcd0a fails since it's not reading a 2k sectore, and using cd0a
fails because it's not getting back the right data.

Name: Dave Huang     |   Mammal, mammal / their names are called /
INet: khym@bga.com   |   they raise a paw / the bat, the cat /
FurryMUCK: Dahan     |   dolphin and dog / koala bear and hog -- TMBG
Dahan: Hani G Y+C 21 Y++ L+++ W- C++ T++ A+ E+ S++ V++ F- Q+++ P+ B+ PA+ PL++