Mac OS X version 10.5 “Leopard” is the sixth major release of Mac OS X, Apple%u2019s desktop and server operating system for Macintosh computers, and the successor to Mac OS X v10.4 “Tiger”. Leopard was released on 26 October 2007, and is available in two variants: a desktop version suitable for personal computers, and a server version, Mac OS X Server. Apple offers a reduced-cost upgrade to people who purchased new Apple computers after 1 October 2007 that do not already have Mac OS X v10.5 pre-installed or a Leopard upgrade DVD included. Steve Jobs stated at Macworld 2008 that over 20% of Macs use Leopard as their operating system. Leopard will be superseded by Mac OS X v10.6 “Snow Leopard”. According to Apple, Leopard contains over 300 changes and enhancements, covering core operating system components as well as included applications and developer tools. Leopard introduces a significantly revised desktop, with a redesigned Dock, Stacks, a semitransparent menu bar, and an updated Finder that incorporates the Cover Flow visual navigation interface first seen in iTunes. Other notable features include support for writing 64-bit graphical user interface applications, an automated backup utility called Time Machine, support for Spotlight searches across multiple machines, and the inclusion of Front Row and Photo Booth, which were previously included with only some Mac models. Apple missed Mac OS X v10.5%u2019s release time frame as originally announced by Apple%u2019s CEO Steve Jobs. When first discussed in June 2005, Jobs had stated that Apple intended to release Leopard at the end of 2006 or early 2007. A year later, this was amended to Spring 2007; however on 12 April 2007, Apple issued a statement that its release would be delayed until October 2007 because of the development of the iPhone.
Keep in mind:

* all download files are perfect * they unrar’d into a sparse disk image fine too * the disk image can be mounted, and is valid * burning a DVD from Disk Utility at maximum spread produced a DVD without reporting any errors, but the resulting DVD does not actually mount (ie. no icon appears for it when you insert the DVD into Mac) * so, chucked that one in the bin * burned another one at Lowest Speed (from within Disk Utility), and that one works (ie. it mounts)


i. Extract files using Stuffit or UnRarx (UnRarx highly recommended)

ii. Use Disk Utility to burn the image to a DVD disk.

1. In Disk Utility, drag the disk image you want to use to the Disk Utility window if the disk image doesn’t appear in the list.
2. Select the disk image and click Burn.
3. Insert a recordable CD or DVD disc into the optical drive of your computer and follow the onscreen instructions.

iii. Reboot with your newly burned Leopard disk in the disk drive, then hold the ‘C’ key whilst your machine is booting up.

iv. Follow the instructions for installation.

v. Grab a beer/coffee and chill until installation is over.

vi. Return and enjoy your new best friend, Mr Leopard.

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