sorry, I'm a dipnoodle when it comes to the "tech" side of this, but I believe my comprehension skills to be "beginner/intermediate"...figured out that NotePad was the 'default' program, and got it to open up in WordPad, then learned a bit about the cmd window, etc.
I paid the $40 (and it goes by a LOT of names, or it's not just Wondershare/Recuva) and extracted all the files in every manner possible (.wav, raw, partition fix, blah blah)
and they're still, as is, just a 10m loop of the 1st 10m of the soundcheck...over all 4 files...nearly 6 hours
how do you you look at the raws (or what do you open them in?), and how do you attempt to fix headers (which is what I guess happened)
never added any info to the card, or wrote over anything, it locks up the Edirol when you put it in there, but the card reader on the cpu can look at the files, they're the right size, etc...and that was before any recovery, etc...
my apologies for the idiocy on my end, it'd be nice if I'd tried this kind of thing before.