File Juicer
File Juicer for macOS
Overview of Formats

Search & Extract


jpg jpeg 2000 gif png pdf wmf emf tiff eps pict bmp


mov mpeg avi wmv


mp3 wav System 7 au aiff


ascii rtf html


avi cab cache chm dmg doc emlx exe ithmb m4p mht mp3 pdf pps ppt raw swf wps xls zip and other formats

NRG - Nero Disk Image

File Juicer may recover some of the individual files (images typically) from Nero disk images.
You could also try nrg2Iso which will let you convert a NRG disk image to an ISO disk image.