18 months or so ago my Foxsat-HDR refused to delete one or two files. I reformatted the disc then did factory reset. All was well until last week, same problem, certain files would not delete. Again I have reformatted the disc and then factory reset. Now it will not delete any files, takes ages to boot up and refuses to record some items but not others. I have tried a second reformat and reset but problem not solved. Sound like a hardware problem??