My War Craft III roc will not install.

[HasBeen]

I just got my imac today. and i have been playing wc3 tft for awhile now and i would really enjoy being able to play it on my IMAC. I tried to install my roc, and it will get so close to finishing the install then a message pops u saying installation failed. because of an error occurred while installing support:war3.mpq. at first i thought it could be something wrong with my disc. but it installed fine on my other computer. and i cleaned the disc and everything. i was just wondering if anyone could possibly help me out. thanks -john

[colocolo]

Go to https://us.battle.net/account/creation/tos.xml and create a Blizzard account. Then, in the Account Tab, go to Manage My Games and add the CD Key.
You will then be able to digitally download the game, and forget all about the CD for good.

Alternatively, you can download the latest patch to make sure the game will run and install on OS X :)

[HasBeen]

thank you i appreciate your help greatly