Videos were very useful to me, thanks to the authors and the posters!
Spending hours fiddling since ML successfully installed!..

Regarding the last video referring to
www.cinema5d.com,
Just an extra info, I am running OS 10.9 (mavericks) on my mac mini, and MacBoot downloadable here
http://www.zenoshrdlu.com/macboot/macboot.htmlalso needs the mountain lion fix (
http://www.zenoshrdlu.com/macboot/macbootcommand.zip) in order to have permission to make your SD card bootable. (To open these "dangerous" & "unknown" applications in Mavericks, remember to right click (= ctrl click) to "force" open them.)
Enjoy!!
5D3 - CF SanDisk Extreme Pro 16 GB