We've got the NEX-FS100 Camera with the HXR-FMU128 flash drive unit. We accidently deleted a couple of large files from the HXR-FMU128, like an hour each. I searched the forums for "recovering deleted files" and came up with what could be a solution. Before I go down that road, I thought I'd post here and ask if anyone has any ideas. Thank you.
I used file scavenger on my windows based server to recover a ton of files I deleted.
The fm128 looks like a hard drive to the OS. So it works for the memory devices also.
I am not a mac person so I cannot comment on the one he mentioned, but can vouch for "File Scavenger." I seem to remember that the trial version would tell me which files it found before I had to purchase the software.