RM>  FI> Oh right, it seemed to work fine without a video-sync signal about
RM>  FI> a year ago, might try that :)                                     
RM>                                                                        
RM>  I'm surprised. The old Quasar machine has an "audio only" setting,    
RM> which  generated the video-sync signal. If you try recording audio only
RM> using the  "line in" setting, the results are exactly as you describe. 
RM> What brand is  your machine, and how old is it?                        
This is a guess.  The "audio only" setting might use the 60 Hz line
frequency to synchronize the carrier.
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