It doesn't seem like an HD failure, since I can listen to the files from the unit. But it seems there is some problem in the unit's end (maybe a firmware bug?), because I'm not able to get those files out using other third party tools like the mentioned Sveta (I get the message: "'LINE 2004-09-11 21:43:08.WAV' Cannot be Retrieved") or the Winamp portable devices feature (it just shows the word "Error").
BTW, I'm running as an admin user.
I wouldn't like having to extract hours of audio using realtime analog recording...
Maybe it's something related with the Windows JB3 driver? (all JB3 tools ultimately depend on it).
Does Gnomad work from a Linux live CD? I can't install Linux because I can't see anything on screen unless using "graphics safe mode".