site_archiver@lists.apple.com Delivered-To: pro-apps-dev@lists.apple.com hello, I hope this helps Matthieu aquafadas _______________________________________________ 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... thanks for your answer and for pointing me to dumpster. I found that my files had the following characteristics: - the timebase in the movie header ('mvhd') was the default value returned by the CreateMovieStorage() method: 600 - the timebase in the video track ('mdhd' Media Handler node) had a value that was 1000000; this was a default value used by our CompressionSession when the used codec was not DV-PAL and not DV-NTSC (some Apple sample code out there does that...I believe). We completely overlooked that. As a result, FCP would not take our files. We changed both values to be either 2500 when doing PAL and 2997 when doing NTSC (this is what Compressor does as well)...and it works. I am not sure we needed to adjust both values...I can only tell that out first attempt in changing ONLY the media timebase was not enough. This email sent to site_archiver@lists.apple.com