Having not received any reply to my post above, and having almost given up, I think Jesus gave me an answer while I was at church listening to a sermon last Sunday, where the pastor happened to quote some of the content of the recording that I'd lost. The thought came to me that I might be able to substitute my 2 files (0.aud and 0.grf) in place of the same named files from a new dummy recording session, and then save to the format I require. Unfortunately, while recording is in progress, those 2 files are in use, so can’t be renamed/replaced. So, I decided to:
- Start a new WavePad session, with nothing in the WavePad folder (C:\Documents and Settings\<username>\Application Data\NCH Swift Sound\WavePad).
- Then put a copy of my original 2 files in that folder.
- Change the attributes of the 2 files to read-only (right-click > Properties > ...).
- Then start recording. (It seems that WavePad doesn’t notice the files are read-only, and thinks it’s recording to those files, I guess.)
- I kept recording for at least as long as the original session (or less to just do a quick test).
- Then stop recording and close the recording window
I could then see the resulting wave form, which was now for my original recording! I could play, edit and save it, like any recording.
- I then deleted the 2 files, so the next recording session would work properly.
Mission complete – thank you Jesus!
I did all this on Windows XP with WavePad Basic Free v3.12.
Note that I have now deleted the files from the web, that I linked to in my original post.