My old reliable 2009 Panasonic DMR-EZ38 DVD recorder has started acting erratically. Sometimes with turn-on, it plays and records OK. Sometimes it plays but won’t record.(no it is not a disk problem, already checked it out). Other times it records OK. Almost always plays OK, but usually get the U99(problem with recording) message when trying to record. Also can not depend on setting the recorder to come on and record at a future time. Any suggestions? Cannot buy new dvd recorders, why? Many customers would gladly buy new.