Which image format do you have to use when converting ISO to DMG (compressed, sparse, ...)?

I've tried using the iPC ISO directly and never got anything bootable, the PC would attempt to boot from the stick, but all I got was a blinking cursor.

My previous attempts went like this...

- I had created 1 journaled partition on my 8GB stick with MBR
- Restored from ISO with Erase Destination unchecked - if checked it complained about the image (source needs to be imagescanned/scanned)
- Installed EFI loader with OSX86Tools