Recordings erase by themselves?

i've been using RR9 for just over a year to record a weekly broadcast from my local NPR station that comes on when I'm sleep.
my plan was to archive them and listen when I have time.
over the holiday, i went to listen to some and find that i cannot find them on the machine anywhere!
i know the recordings were made because I can usually see the RR9 start recording at the correct time and see my speaker icon mute.
also, I can see the "last recorded" program listed in the RR9 program window when I open it.
but when i go to the media storage location, there are no files.
yes, i checked for "hidden" files.
i'm running windows 7OS (64bit).
i did a test tonight by tuning in the station and hitting record now to record a few minutes.
that seemed to work correctly and I've checked that a media file was indeed saved in the correct folder.
I guess tomorrow, I'll do this test again and see if tonight's file disappears.
any ideas? anybody seen anything similar?
i never saw this in any of the previous RR versions I've used, some on this same computer and OS!

thanks,
mlloyd1

The program is not going to delete files. It does not have the ability. Once you have a file on your computer it is yours to keep and do with what you wish. Thanks.