Wow, thanks all three of you for taking time out of your day to help me. I also want to apologize because my email checker wasn't configured properly so I didn't receive notices of your answers until just today. Thanks again. Well, yeah, what I've found, perhaps for others, after looking into all of these programs, is that MagicISO utility seems to blow most of the others away. I liked/needed the CONVERT tool, to convert my .IMG's into ISO's (I thought those img's were ISO initially).
Anyway, but, for any of you guys who are running MagiISO, I have a question, as SOON as I browsed to my 25GB.img file to do the "CONVERT to ISO", they gave me an error popup, saying that MagicISO "can't find the file or it isn't a CD/DVD image file!". The 25GB img file is on an external HDD connected thru USB to my WIndows 7 machine. Thanks to those of you who may have used MagicISO who can help me understand this error, since I'm new to this stuff and all I want to do is convert it to an ISO (and then make it bootable using the same software) so i can restore from that imaged HDD in the event of an emergency. Thanks for your thoughts and thanks for your continued help! :)