'''Help us help you.'''
The more complete the description of your problem is ''(though it 's clear to you - you've omitted much crucial information such as what OS you're using, there's a lot of those, '''was the ISO verified as correct after burning'''? )'' the more assistance we can provide, and, the sooner we can provide it.
Have you '''tried different media or using a slower burn speed '''-often useful in solving Optical Disk Burn/read problems.
''If this answer is acceptable '''please remember to return and mark it accepted'''.''