![]() ![]() The “dc42” folder contains disk images withthe Disk Copy 4.2 header, and having filetags and checksums. The original Macintosh 128K and 512K can only use MFSand not HFS. The “mfs” folder contains disk images in theMFS format (Macintosh File System).All the other disk images in Blanks are in “HFS” format (Hierarchical File System), the standard for a Macintosh Plus.MFS preceded HFS. ![]() In general, it may not a good idea touse the largest sizes, for reasons described below. The “M” folder contains disk images larger or equal to1 megabyte, up to 224M. The “K” folder contains disk images smaller than 1 megabyte,in powers of 2 starting at 128K (the smallest that works),and also multiples 1.25, 1.50, and 1.75 of those powers. But Mini vMac doesn'temulate the real floppy drive, replacing the disk driverin ROM, and so can use any size disk image, not just 400K and 800K. A real Macintosh Plus floppy drive could use 400K disks,but not 1440K, which came later. The top level of the blanks folder contains 2 other disk imagesin the sizes of standard Macintosh floppy disks: 400K and1440K. For example, unzip “800K.zip”to get “800K.dsk”, an 800K blank disk image, the size ofa floppy disk normally used by a real Macintosh Plus.įor information about using disk images in Mini vMac,see the ' Floppy Drive'section of the Hardware Reference.To transfer files from your realcomputer into and out of disk image files, see the utilities ImportFl and ExportFl. For System 7.5.2 and newer, the maximum usable size of a volume is 2 terabytes, but this is discouraged as it then renders those drives incompatible with previous versions of Mac OS.“blanks-1.1.zip” is a zip archive containing a folderof zipped empty Macintosh disk image files of various sizes and formats.įirst unzip “blanks-1.1.zip” to get the folder“blanks”.Then when you need a blank disk image, unzip one of the filesin this folder. Note: For System 7.5.1 and older, the maximum usable size of a volume is 2 gigabytes. In other words, if you're planning on using, say more than a 10GB big drive in Mac OS 9, you should totally go with HFS+ as it will contain WAY MORE files than a same size HFS standard drive. Even if you write tiny files, the remaining bytes in those blocks are totally wasted, resulting in humongous files that contain next to no DATA. The way HFS standard was implemented, there can only be limited small amount of blocks on a single drive, resulting in those blocks to distribute the hard drive space evenly and thus, be huge. Just a couple characters typed in a SimpleText document and saved on that drive will always result in a minimum size of nearly 1MB (1000000 bytes) instead of say, 8 bytes! This is due to the 16-bit blocks addressing limitation. For instance, think of a 30GB drive that you format as HFS standard (tough this would only be possible on System 7.5.2 or newer). The reason is the bigger the hard drive in standard HFS (not HFS+) is, the larger small files will use. HFS vs HFS+ quick tip from that-ben: Even tough HFS standard is highly compatible with almost all Mac OS versions, it still remains the worst choice for anything above Mac OS 8.1 in terms of efficiency. Note: Please be patient when extracting these blank disk images, as your hard disk has to write the whole space (up to 30GB) so it might take a couple minutes depending on your computer specs. These empty disk images range from 2GB HFS formatted (appropriate for Mac OS 6, 7 or 8) up to 32GB HFS+ formatted (Mac OS 8.1, 9 or early Mac OS X).įor floppies and smaller hard drive HFS images, check out Glyphel's blanks archive Once inflated, they will instantly take the whole space they are marked at. What is Blank hard drive disk images (100MB HFS up to 30GB HFS+)?Īll these download files consist of extremely compressed empty disk images for emulators (such as SheepShaver or Basilisk II) that are to be used as hard drive to store files and/or the operating system. ![]()
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