It is highly possible that the drive is dirty or damaged (out of alignment). I've had a few drives work only with media that they format. Occasionally, that drive might read other media, but your situation is a classic symptom of this problem. I have not heard of any method that will fix. I've always replaced the drive. Matthew
On Tue, Feb 10, 2009 at 6:17 PM, Cyrus <[email protected]> wrote: > > Does it work the other way? I have a Mac Plus, and it seems to be able > to format a 1.44Mb disk sot that it can read it, but then none of my > other macs (IIsi, G3 minitower) will read it, and if I format the > disks on the newer macs, the Plus won't read them. > > -Cyrus > > On Feb 10, 5:06 pm, Derek Morton <[email protected]> wrote: > > Dylan, > > > > I am not sure where you got it that a superdrive is incapable of reading > 800K disks, but it will. It will also read 400K disks... Support for MFS > was dropped at some point, although I cannot recall what OS version (8?). > As long as the disks are HFS (which they should be), you should be good to > go. > > > > Keep in mind that when the original "superdrive" floppy drives came out > the Mac had only been around a few years and there were still plenty of > people with 400K and 800K disks in use... Not to mention the extra cost of > HD disks back then (the hole punch was my friend). > > > > Derek > > > > > I need a 800k 3.5" external disk drive for my > > > PowerMac 7100. The > > > only connection on these machines that seems viable for > > > such a device > > > is the SCSI port, but that dosn't really make sense for > > > such a slow > > > device. I definitely don't think one could use the > > > serial / printer > > > port. I have never seen an external disk drive for a > > > PowerMac. My > > > Apple IIe & GS have a special port just for external > > > floppy drives, > > > does anyone know if their is an adapter that makes these > > > compatible > > > with a Macintosh? This would be great, because I have > > > several of these > > > drives already. > > > > > The reason I need this is because the 2MB internal drive > > > won't read > > > 800k disks, no Mac "superdrive" will. I never > > > understood this > > > limitation with Mac machines, as I come from a PC > > > background. This has > > > never been true of PC disk drives. I understand why it > > > won't work, > > > because of head alignment, I just don't understand why > > > this is not the > > > case in PC drives. Anyone know a way around this? I > > > don't think there > > > is one. > > > > > Does anyone have a 800k 3.5" drive that will work with > > > a PowerMac 7100 > > > which they wouldn't mind selling for a reasonable > > > price? > > > > > Thanks, > > > Dylan > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
