OSX
A few notes on OSX tasks I do so seldom I have to google everytime!
Create ISO image
To do this with the tools available by default in OSX it's a 2 step process. First off use Disk Utility to create a read only image of the CD/DVD (this will be dmg format).
Use the hdiutil command line program to covert the image into an iso.
hdiutil convert /path/to/filename.dmg -format UDTO -o /path/to/savefile.iso
You'll probably find it appends a .cdr extension, just remove it and you'll be left with a regular iso.