Boot your Mac into Windows and insert your Linux install disc (see step 3). When it auto-runs, click the Install Linux Mint Inside Windows option, and follow those instructions.

How to Make a Bootable Mac ISO. When your small business creates a bootable disk for its Mac computers from ISO disk images, there's a difference between an ISO file and the disk image it contains.

If you want to share VirtualBox VM between Windows and Mac/Linux or between Mac and Linux, go through the steps mentioned in this post.