I have Panasonic PV-V4022 VHS VCR, when ever i tried to record something form TV or form other VHS after 40 - 45 mintues of recording the sound started to get bad. I sound like you're tring to speak in front of the fan. I tried alot of Head Cleaning Tapes but nothing happnes. I want to know is it somthing problem with the audio hear. and how can i fix it.