Phillips Dvdr 3320V unknown disk error

no matter what disk is am getting the dreaded unknown disk error…

Have searched all the site for anything related to this model but there is nothing… I can’t check version no: as it dosent have that option in system menu. I thought maybe a firmware upgrade? If it were the dvd thats caput then it would not try to read it at all? (hopeful here lol)

Hope someone can help plz