Obviously you're at fault for making your OSD crash like that

Garbage in...
Hey, don't look at me - it was Eurovision. Maybe it choked after seeing
Jedward's entry.

I think the files are stored on the read-write storage, so CF card in your case. Hopefully it's still there. Try /media/ext/.osd-extended/scratch
.osd-extended isn't in
/media/ext. But I have seen that folder, so I'll look around.
I hope it wasn't
/mnt/tmpfs/osd.tmp because that is a file that says "[EXIT]"...
Ah, found that directory.
/opt/osd-extended/scratch ... empty.
Well, worth a try.
Sometime in the future, I might try a recording using the same options, keep an eye on the filesize via telnet, and see how it behaves when it hits the 2Gb mark. {*}
Best wishes,
Rick.
* - of course, Murphy's Law says....
