Trying to understand this.
I believe you are joining four files: a=2,b=2, c=less than 2, d=less than 2.
The absolute maximum size for a wav file is 4. So if only a tiny bit is added somehow a+b might become more than 4.
Suggestion: split b in a break somewhere, gettin b1 and b2. You should now be able to concat a+b1.
Gunnar
Lets see if I can explain this clearly.
I've got a total of 4 files.
1.wav
2.wav
3.wav
4.wav
1 and 3 are at 2gb each.
2 and 4 are 500 and 800mb (or whatever)
Each of these 4 files contain "generic" track markers.
I open 1.wav double click between the last track marker (start of the last song in the 2gb file)
and the end of the file. Copy it to the clipboard.
Start a new .wav file at 24/96
Paste the contents of the clipboard to the new file.
I then open 2.wav double click between the beginning of the file and the first track marker
(the remainder of the last track from 1.wav). Copy it to the clipboard. Switch to the new
file, press the "end" key on the keyoard, and paste.
I now have the complete song in one file, unsaved.
I save the file and watch the progrees bar in the lower left corner. It never reaches
100%. It generally stops at 57% or 58% (happens to be the percentage that equals
the length of the first cut/paste).
At this point, I THINK I've got the entire song. Wave form looks good and complete.
Two things at this point that make the second portion of the file disappear:
1. Close/reopen the file, only the first cut/paste has remained intact. The second
part was simply discarded.
2. After saving (not closing the file) if I change the display (pan/zoom) the second
part disappears from the screen.
Does that help?