Yep, welcome to the forum
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Errm, there's Nero 6.x and Nero 7.x and as I understand it, both are current versions.
All I know is Nero 6.x and I'm not an expert.
Reading your post I could almost assume that it wasn't you who built that image with Nero, am I right?
Anyways, if you have a Nero file I'm pretty sure that you can play it before burning it if that's what you want.
First, get your hands on Daemon-Tools.
Just run a search for it using google or your favorite search engine.
Don't worry, it is free software without spyware or anything like that.
If it asks to install a "toolbar" or anything like that just answer "no toolbar".
Then use Daemon-Tools to "mount" your *.nrg and/or *.bin files.
If it pops up the same folders, which BTW you could be more specific about, then that's probably because there are no MPEG2 decoders in you PC.
And that, we'll talk about later
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Cheers