Ted, you're missing an important fact: Your aup. file still remains when you export something as an MP3. Exporting it as an MP3 creates a NEW file that asks to be named and placed, and your Audacity file is still there, unaffected.

Thanks MK...I sent a wav file to my wifes PC...I had to use yousenditcause it was so big...I got it somehow into an Audacity program I loaded on her computer...the spectragram looked diff but I could record...

I think your right...I have seen that aup. file..if that is it then it would all be good...thanks again smile