onyx voice recording software

[Creasen Pillay]

Hi ALL

I'm do helpdesk and related stuff at my company so i have to use Linux 
and windows. We used a onyx voice recording device some time ago and 
saved the recordings. Now a few months later the directors want to use 
the recorded stuff and this software refuses to recognize the old files. 
They are saved with a .gsc extension. Any ideas on how to convert them 
to mp3 or wav or any other standard format please.

Thanks
Creasen