Another question

I did up a show which is an exe but I had tried to do one up for the
CD/DVD and now have in the folder where I save my shows a NGR file
which is huge. Would someone please tell me what this is as I got
notices that it could not do the show for the CD/DVD on due to my
burner that I have on here.
Also has anyone used Easy CD Creator 5 to do up shows with? thanks
for any help and info Sandy Davenport