Talk:Video overlay

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So i do not understand that deletion stuff. But anyway, can this article please clarify, why modern 3d accelerators do no use overlays, but video decoders do? I mean: what is the motivation for overlay in an all-digital environment? Otherwise we should write that as of 2009 it is a historic technique still present due to backwards compatibility issues. Arnero (talk) 08:39, 14 May 2009 (UTC)[reply]

1550 nm overlay for Video in PON technologies?[edit]

I still can not understand wether this overlay is a network overlay or video overlay as PON technologies ARE supposed to be network technologies rather then video streaming??????????? khanlalaje 202.165.250.197 (talk) 05:10, 11 February 2011 (UTC)[reply]