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Re: Magneto optical drives and other issues



On Thu, 19 Oct 1995, zinc wrote:

> On Thu, 19 Oct 1995, Stephen Su wrote:
> 
> > I've been using 1.99p3 and have had problems reading Mac formatted 650MB
> > magneto-optical disks in an IBM 0632CHA 1.3GB MO drive.  I formatted and
> > partitioned the disk with FWB's Hard Disk ToolKit on a PowerComputing 100
> > running System 7.5.1.  In DOS the MO drive is I:, and if I put a 
> > DOS-formatted disk in the drive, Executor will recognize it as a DOS HD.  
> > If I put the Mac formatted disk in and type
> > 
> > executor -macdrives I
> > 
> 
> 
> i don't think this is a limitation of executor at all.  we have a couple 
> of Pinacle Micro magneto-optical drives (650 MB and 1.3 GB).  in my 
> experience the DOS driver will not read Mac disks and the Mac driver 
> (extension...) will not read DOS formatted disks.
> 
> if the computer cannot access the disk, then there's no way for executor 
> to get to it either.

It seems like there should still be a way around it.  CDROM drivers for 
DOS/Win machines (proprietary, ATAPI, and SCSI) all work with Mac 
formatted CDROMs, even though the DOS drivers weren't written with the Mac 
format in mind.  The same thing's true about BIOSes and ASPI drivers with 
regards to SCSI hard drives.  I don't know anything about how Executor 
manages to read Mac media on PC hardware, so I'll defer to ARDI to say 
whether this is an Executor limitation or driver limitation.  (BTW, I'm 
using ADVASPI.SYS from Advansys and UNI_ASP.SYS from Corel SCSI 2.0 as 
the drivers in DOS/Win 3.1.)

---
Stephen Su    ssu@garnet.berkeley.edu


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