In the middle of saving ‘project’ Audacity stopped working, and I could not get it to recover. Later I found that the several data files were saved, but not the main file that reads all the files (as I understand it). So I am wondering if there is a way to recover my recorded program. I had just finished recording a Sunday sermon at church, as I have done many times. The information is very valuable to us at the church.
It would help if you told us which version of Audacity you have - please see the pink panel at the top of the page.
You are generally best to use the latest version of Audacity which has the latest bug fixes. Go to http://www.audacityteam.org/download/windows for the latest Audacity 2.1.2.
To recover a recording without the AUP file, you can try piecing together the small AU files. However in this situation some of the AU files could be in the _data folder for the project (for example, “sermon_data”) and some of the AU files could still be in Audacity’s temporary folder. So you may have to collate the AU files into one folder to be sure you have all the files sorted in their correct timestamp order, which is essential to recovery.
For instructions, see Recovering crashes manually. That shows you where the temporary folder is for Audacity 2.1.2. If you have older Audacity, try C:\Users<your username>\AppData\Local\Temp\audacity_temp.