![]() So, could experiment with this to find the right file size. So in this case 72 "megs" is about half the size of my original video, I can make it even smaller, make it about 40 "megs" by making it 1000 kilobits per second. Now all these other settings really don't affect it they're all about quality, this is saying exactly how much space per second of a video that it's going to use. You check that, and you get to set a kilobits per second, so lets set it at say, 2000 and you can see here on the right it gives me the approximate size of the video. So, the most important setting here is Limit Data Rate, this is where you can actually make your file smaller. Now some of the transitions, some of the special effects from iMovie won't look as good with these settings so probably in your final video you want to crank it all the way up. If you're in a little bit of a rush, or you want to try out some different compression rates you may want to have it a little bit lower. The next three settings here are all about quality, so you're trading speed at which you can process the video for quality, so if you have all the time in the world to make a video you might as well crank it up to 100%, turn on Multipass turn on B-Frames. So I want to use the H 264 compression, that's pretty standard now. So I'm going to start by dropping the video into MPEG streamclip and it'll apear in there, than I just simply go to file and one of the export options, now I want to export to MPEG-4 for the most compatibility and IO get this window here that has all the different options. If I select it, and get info on it you can see that the file size is 139 "megs" and I want to make it a little bit smaller without losing too much quality. So here I'm running MPEG streamclip and on my desktop I have a video i'ts actually an episode of MacMost Now, directly ecported from iMovie. Well you can use a free program called MPEG stream clip to compress the video even more than what it's compressed to when it comes out of iMovie. Maybe it's over the size limit for a service you're uploading the video to, maybe you need to send it to somebody or maybe or maybe you need to put it onto a disk and it's just too large. So we get asked this question a lot, you create a video in iMovie and you end up with a file that's just too big. Video Transcript: Hi, this is Gary with MacMost Now, on today's episode let's use MPEG stream clip to compress video. Check out MacMost Now 571: Compressing Video With MPEG Streamclip at YouTube for closed captioning and more options.
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