Playing Backup problems!!!

[shaft-uk]

Hi, i have a backup of the game Burnout 3 stored on my comp as .iso, however whenever i try to burn and play, it doesn't work??

I have a neo 2.2 mod installed with Action Replay 2.

I've tried using different burning programmes e.g nero, alcohol, stomp recordnow etc amd burning at slowest speeds but to no success.

Anyone know what i can do to get it to work, or if the file is corrupt tell me a way of checking whether it is corrupt??

One more question, i got the ASA Patcher but i'm unsure as to how to use it correctly? Do i have to put the image file of the action replay disc on my computer and patch that with the games?? will it allow me to play games without having to do the swap trick?

Any help to either questions would be greatly appreciated

thanks