Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread Pete Lancashire
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

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread ethan
Thanks. That doc mirrors my current understanding, but it doesn't address the ROM hack I'm contemplating. -Swift Microcontroller board to rewrite the scsi cdb block with the vendor over to Apple! -- Ethan O'Toole

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread Swift Griggs
On Wed, 15 Jun 2016, rescue wrote: > Don't have time to fully check it out, but check out: > http://chrislawson.net/writing/macdaniel/2k1130cl.shtml Thanks. That doc mirrors my current understanding, but it doesn't address the ROM hack I'm contemplating. -Swift

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread rescue
Don't have time to fully check it out, but check out: http://chrislawson.net/writing/macdaniel/2k1130cl.shtml On 2016-06-15 17:24, Swift Griggs wrote: On Wed, 15 Jun 2016, rescue wrote: Didn't hacked or 3rd party cd-rom drivers exist? I have some vague memory, but I was thinking that

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread Swift Griggs
On Wed, 15 Jun 2016, rescue wrote: > Didn't hacked or 3rd party cd-rom drivers exist? I have some vague memory, but I was thinking that could just be wishful / convenient memory on my part. > That won't handle the boot problem, but the boot checks might not be as > thorough as Disk Setup ???

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread rescue
Didn't hacked or 3rd party cd-rom drivers exist. That won't handle the boot problem, but the boot checks might not be as thorough as Disk Setup ??? Plextor CD-ROM SCSI drives used to have a 512 byte block jumper as well. I don't know about the DVD drives. On 2016-06-15 16:45, Swift

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread Swift Griggs
On Wed, 15 Jun 2016, et...@757.org wrote: > I'm not sure if it has anything to do with it, but over on the early SGI > and Sun and NeXT stuff you had to change the block size on the CD-ROM to > get them to work. Yeah, I think you mean the 2048 vs 512 byte block size. SGI's use a 512 byte size,

Re: Possible to Re-flash a Yamaha SCSI CDROM to fake an Apple CDROM ?

2016-06-15 Thread ethan
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 not sure if it has anything to do with it, but over on the early SGI and