15 Jun
2016
15 Jun
'16
3:05 p.m.
Your going to need a CDROM that can be set for 512 byte sectors. We use to
use Plextor drives
and if money was a factor, Pioneer. In the early days Plextor drives were
quite a bit more expensive
the all the others, and where usually faster.
BTW 512 bytes came from the sector size of a hard drive
On Wed, Jun 15, 2016 at 11:47 AM, Swift Griggs <swiftgriggs at gmail.com>
wrote:
On older Apple 68k machines, having an Apple-branded CDROM means you can
be assured it'll boot (though it's rumored that many generic SCSI CDROMs
work for booting) and also that it'll "just work" on most of the OSs.
I'm guessing it's a simple check to see if the vendor in the firmware is
"APPLE". Has anyone ever managed to hack the firmware of something like a
Yamaha, Pioneer, or Plextor drive so that it lies and says it's "APPLE"
thus being fully enabled by the OS & hardware ? Does anyone know anything
about flashing CDROM firmware and the dynamics of such things? I wonder if
it'd just be a matter of a simple hexedit/byte-patch on the firmware image
then load it up... Is this a bogus idea?
The reason for this is that if it's possible, I could buy a Pioneer slot
loading SCSI CDROM drive, stuff it into my Quadra 660AV, and then hack it
to "just work" instead of needing drivers et al. The slot cover isn't big
enough for a normal tray-drive CDROM to work. Thus I can only use a CD300i
caddy-based drive (or theoretically - a slot drive). My 300i is a bit of
PoS and even after I cleaned it, the thing still has a lot of read
problems.
-Swift