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Re: SCSI LS-120 Superdisk drive on an Apple IIGS





Herbert Fung wrote:
OK, I found my RamFAST cable and did some tests, but in doing so I found out
I goofed yesterday. I mentioned that the 1.44 HFS disk failed to mount. I
just realized it was just an 800k HFS disk. I haven't looked at my Mac disks
in ages and assumed that they were all 1.44. That being said, the 1.44 HFS
disk with the High Speed SCSI card mounted just fine.

Now back to today's results with a 1MB RamFAST Rev. D with the 3.01-F
firmware

720k MS-DOS mounts and reads fine
1.44 MS-DOS disk mounts and reads fine
120MB MS-DOS disk fails to mount

800k HFS disk fails to mount
1.44 HFS disk mounts and reads fine

800k ProDOS disk fails to mount

OK, heres the good news. Upon attempting to format a double-sided disk, I'm
given the options of using HFS or ProDOS at 720k. I didn't bother since this
isn't useful for my purpose.

Upon formatting a high density disk I'm given the options of HFS/ProDOS at
1.4MB. Good news is that a Mac can mount and read HFS/ProDOS disks formatted
on the LS-120 drive.

So my conclusion is that if you want to read MS-DOS disks, and read/write to
high density ProDOS/HFS disks, and you have a RamFAST, an LS-120 SCSI drive
might be worth your while if you can find one cheap enough. Don't expect to
be able to use the 120MB disks though.

Not surprising that the 800k floppies fail to mount. I believe the LS-120 drive is a single speed drive and you need a variable speed to read and write 800k disks. I tried to use 800k disks on the USB LS-120 on my Mac with no luck.

Have you tried partitioning a floppy yet :-)