I was volunteered by my wife to record her friend's home VHS tapes onto DVDs.  I have 2 VCRs, both of which I rarely use anymore.  Between her old tapes and my old VCRs the picture and particularly the sound quality was awful.  After I used the Maxwell VP200 VHS Wet Cleaner, the picture and sound improved greatly - probably the same quality as it was when the tapes were originally made about 10 years ago.