PPCGeeks - Is this possible??

Before anyone says it YES I searched. But wasnt able to find exactly what I was looking for. Seeing as flashing from the card is getting more popular. I was wodering. For safety net purposes. Is it possible to get the stock Sprint or other carrier ROMS into nbh format?? I have seen them BUT they were listed as dumped ROMS which I may be wrong but dont include the radio. If I am wrong no worries. I just know last night after flashing mine wouldnt go past the Touch Pro screen. I had to put the card into the computer and change which ROM was there to fix the issue. My thinking is it might be nice to be able to go back to stock if issues arrise. If I missed it in my search I do appologize and if someone would point me in the right direction it would be appreciated.