I think Wikipedia has a very good explanation of this:

quote:

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A time code is a sequence of numeric codes generated at regular intervals by a timing system. Time codes are used extensively for synchronization, and for logging material in recorded media. SOM is also a related term (in the broadcast industry) and stands for 'Start of Message' or 'Start of Media' also known as Time Code (TC) in. Similarly EOM stands for 'End of Message' or 'End of Media' also known as Time Code (TC) out.

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"Imperfection equals Realism"

Thanks Henry

The reson I ask is because I am working on a short 5min doc for the community channel on sky, but I have never submitted anything before you see.

Cleary

www.myspace.com/b31_film_productions