how can I retrieve what i recorded on the dvd recorders after it freezes?

I have a liteon 5005 for about 7 months .Sometimes in the middle of the recording , it freezes( pressing any buuton,nothing seems to respond it just gave a black screen on the tv monitor.. Is there any way to salvage what has been recorded up to the point of freezing ?
g levan, January 2005


done
Could try placing a chapter mark before the end of the recording.

Cobweb, January 2005