Used nrg2iso for Mac?
Developer’s Description
By X2 Studios
nrg2iso extracts ISO 9660 files from Nero's proprietary .nrg format. This is a GUI wrapper for the linux command line nrg2iso v0.4 tool by G Kokanosky which is available under the GNU GPL. Now modified by Daniel Bulow for 64 bit.
Added a new universal version that handles more types of .nrg files with better compatibility. Based on nrg4iso by Mark Akesson.
Both versions also support extracting dmg files for use on PCs.
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