In accordance with the invention, a timing signal is recorded containing certain information that is used, upon playback, to produce a reference marker which is compared with {HEAD ~ the detectable characteristics} of {TAIL ~ recorded information signals} to produce a measure of skew distortion 
of
In accordance with the invention , a timing signal is recorded containing certain information that is used , upon playback , to produce a reference marker which is compared with { HEAD ~ the detectable characteristics } of { TAIL ~ recorded information signals } to produce a measure of skew distortion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH