I'm trying to use bootcamp, I bought Winodws 7 and got the iso in an archive but can't open it. I get this message "This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification."
What's type of Mac and which year model are you installing on?
You need to run this program from Microsoft http://www.microsoftstore.com/store/msusa/html/pbPage.Help_Win7_usbdvd_dwnTool in order to create a bootable usb install from the ISO file you have. Download the program and follow the instructions, once it's completed close the program and then begin the bootcamp process again and all should be fine.
The program is .exe, will I need to open it on a PC then?