> I’m serving the mpegs from Apache and viewing with a browser plug in (QuickTime). They now appear “sticky” and “jerky.” Older mpegs, created with the previous system, playback fine so the problem is not with Apache, browser, or plug-in. Newly created files are also much smaller (1.3M) compared to before (11M) , so I suspect the authors also chose a lower mpeg quality setting. Maybe if you can identify what is different between the files you'll have a better idea what settings to be looking for. Ffmpeg can tell you the file details if give the file as an input and don't do any operations. eg. ffmpeg -i old_smooth_file.mpeg ffmpeg -i new_jerky_file.mpeg I've never used ImageMagick for making videos from still images (always used ffmpeg for that...), but this mailing list thread suggests that ffmpeg is what's actually making the videos in the background. http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=13650 This newer link suggests that you might be able to change the ffmpeg defaults (as called by ImageMagick) in you delegates.xml file. Michael Moore -- http://fridleyfarmer.com -- The Fridley Farmer http://stuporglue.org -- Web programming, Moore's Ramblings III and other Miscellaneous Projects