Floppy disks mac format11/6/2023 Tom Lee of Stanford has graciously provided the following explanation: UNDER NO CIRCUMSTANCES SHOULD YOU USE FLOPPIES FORMATTED LIKE THIS FOR STORING DATA LONGER THAN A FEW WEEKS. THE DATA ON DISKS FORMATTED LIKE THIS WILL NOT USUALLY SURVIVE FOR LONG. If you absolutely need an 800K disk and only have 1.4MB floppies available, you can force a 1.4MB disk to be an 800K disk by taping over both sides of the hole opposite the write-protect tab. While it's physically possible to do it, those of us with a great deal of experience with Macs almost universally recommend against it. UK-based Mac users can mail-order 800K floppy disks from Action.Ģ.3.3 - Can I use HD floppies in an 800K drive? The other side isn't certified and very likely may not be stable enough to preserve data. Many 400K drives run the risk of damaging the non-recorded side of the media, however, so if you do reformat 800K disks as 400K, don't try to use them as 800K disks any more.įormatting 400K disks as 800K should NOT be done, since 400K disks are only certified for read/write use on one side of the media. This allows you to use 800K disks in 400K drives. 400K disk drives have only one read/write head and thus only write on one side of the disk, but are otherwise the same as 800K disk drives. If you need 400K disks, just get 800K disks and format them as 400K. has several brands in their online catalog at reasonable prices. OfficeMax and Office Depot both stock them in their catalog though finding them in a store is difficult. Keeping in mind that 720K PC floppies are the exact same thing, there are several good sources of 800K floppies in the U.S. The Zip on a Plus page (dead as of May '02) is also an excellent resource for getting a Plus to work with Zip drives.Ģ.3.2 - Where can I get 400K or 800K floppy disks? You'll have to reformat it under Zip Tools 4.2 or earlier if you want it to be your boot Zip disk. Be sure and use a Zip disk that has NOT been used under a newer Iomega Zip driver or it won't boot the but it will work as a hard drive. The short answer is "Yes." The longer, more in-depth, useful answer is "Yes, provided that you get the right driver and don't use the disk with later versions of the driver on different Macs." JAG says:Īs far as booting off a Zip, you need driver 4.2. Removable Media/Floppy Drive Questions - the pickle's Low-End Mac FAQ Removable Media 2.3.1 - Can I use a Zip drive with System 6 and/or as a boot disk?
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