site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com I got a problem here. Is this a known bug and if yes is it a QT or FCP bug. Regards Andreas _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.ap... This email sent to site_archiver@lists.apple.com We have an app which adds AUX 1 TCs to captured movies - it does add them to the movie on disk. This works perfect. FCP does recognize everything as expected. See "Bin source files" in the screen shot. A possible second step will delete the source audio and replace it with an external audio (in the file). Now the AUX 1 TC is still there but does have the Source value. See "Bin merged files" in the screen shot. Deleting manually the source timecode in QT Player will restore the correct AUX 1. See "1_1_1_03 copy" in the screen shot. But that's not a solution. Only workaround is to add an AUX 2 to file which is recognized correctly by FCP. See "Bin merged files" in the screen shot. screen shot.png Checking the tracks of the merged files in QT Player also show correct results. Extracting Timecode Track 2 (AUX 1) shows the correct TC. screenshot 2.png