ActionScript 2.0 Language Reference - Adobe Help and Support

Seeks the keyframe closest to the specified number of seconds from the beginning of the
stream. The stream resumes playing when it reaches the specified location in the stream.
Availability: ActionScript 1.0; Flash Player 7 - Note: This method is also supported in Flash
Player 6 when used with Flash Media Server. For more information, see the Flash Media
Server documentation.
Parameters
offset:Number - The approximate time value, in seconds, to move to in an FLV file. The
playhead moves to the keyframe of the video that's closest to offset.
■ To return to the beginning of the stream, pass 0 for offset.
■ To seek forward from the beginning of the stream, pass the number of seconds you want
to advance. For example, to position the playhead at 15 seconds from the beginning, use
my_ns.seek(15).
■ To seek relative to the current position, pass my_ns.time + n or my_ns.time - n to seek
n seconds forward or backward, respectively, from the current position. For example, to
rewind 20 seconds from the current position, use my_ns.seek(my_ns.time - 20).
The precise location to which a video seeks will differ depending on the frames per second
setting at which it was exported. Therefore, if the same video is exported at 6 fps and 30 fps, it
will seek to two different locations if you use, for example, my_ns.seek(15) for both video
objects.
Example
The following example illustrates some ways to use the NetStream.seek() command. You
can return to the beginning of the stream, move to a location 30 seconds from the beginning
of the stream, and move backwards three minutes from the current location:
// Return to the beginning of the stream
my_ns.seek(0);
// Move to a location 30 seconds from the beginning of the stream
my_ns.seek(30);
// Move backwards three minutes from current location
my_ns.seek(my_ns.time - 180);
See also
play (NetStream.play method), time (NetStream.time property)
996 ActionScript classes