Return-Path: Received: from spike.lmi.net ([66.117.140.17] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP id 4889111 for AE-List@media-motion.tv; Sat, 03 Nov 2012 19:35:26 +0100 Received: from [10.0.1.52] (c-71-198-249-239.hsd1.ca.comcast.net [71.198.249.239]) by spike.lmi.net (Postfix) with ESMTP id 71614154056 for ; Sat, 3 Nov 2012 11:38:21 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: [AE] REC 709 level shifts From: Brendan Bolles In-Reply-To: Date: Sat, 3 Nov 2012 11:38:19 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: "After Effects Mail List" X-Mailer: Apple Mail (2.1084) On Nov 2, 2012, at 4:21 PM, Sixtus Beckmesser wrote: > I sent some uncompressed AVIs to the BD authoring house, they = converted them to AVCs and burned them on a BD. When I got the BD back = for testing, all the stuff near black (16) has been shifted upward in = level. What have I done wrong here? Looks like whatever they're using to create the AVCs is assuming that = the input is full range (0-255). If Blu-Ray uses 16-235, that encoder = is adding it. If your material already has the 16-235 in it, you're = getting a double-whammy and your blacks are getting lifted too high. Probably the easiest thing is to re-send your material to them as 0-255. = It's possible they have an option for the encoder to expect 16-235 = material, but I guess that's not their default. Brendan