In JW player you can set the buffer in the Flashvars. What you are doing looks correct in the embed section, but not correct in the object section. Each has to have a Flashvars line, but just one, but it should look like the one you have in embed section.
flashvars=“file=mediaxml/142.xml&username=1&bufferLength=10”
This is more complete:
flashvars=“streamer=rtmp://[wowza-address]:1935/[appName]&provider-rtmp&file=mediaxml/142.xml&username=1&bufferLength=10”
I added the streamer and provider Flashvars
In the Object section you have several params named “Flashvars”, that is not right. And the way you are setting bufferLength is correct in the embed Flashvars line “&bufferlength=10” is right. But it iswrong in the Object section, “bufferlength(10)” is wrong.
See this post:
http://community.wowza.com/t/-/246
And visit JW player, and use their setup Wizard:
http://www.longtailvideo.com/support/jw-player-setup-wizard
And take forums:
http://www.longtailvideo.com/support/forums
Richard