Retrieve deleted program

is there a way to retrieve a program which I deleted incidently? I did not make any new recordings since then.
I own a Panasonic DMR-EH56
thanks - Romain

Assuming you are referring to a RW or RAM disc, you could try it on your PC with a program like ISObuster or one of the many file recovery programs.

forgot to mention that the deleted program is on the harddisk;
any chance in recovering it?
thanks - romain