Nero normalizer

I just wanna know if there is any setting in nero normalizer that would ‘set’ most of the audio files in a cd compilation to nearly the same volume level.currently my nero normalization method is set to ‘RMS’, ‘percent’=20. which setting would be close to perfection. Also, is there any tool that would do the job of setting all my audio files volume to the same level

20% would be just right I always leave the default setting but it can be change. There are 3rd party programs that will normalize sound tracks, do a search on