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Compressor 4 Essential Training streamlines the processes of compressing and encoding media in Final Cut Pro X's companion compression software. This course introduces the fundamental concepts of compression, how to determine appropriate compression settings, and building and modifying encoding presets for a variety of outputs, including Apple and Android devices, DVDs, PowerPoint, and the web. The course also covers placing watermarks, setting destinations, and transcoding files automatically using droplets.
While Compressor does a great job of building the necessary assets for Blu-ray encoding and authoring, for a Blu-ray compression there is a neat little catch in there: the Blu-ray standard has H.264 that's an MPEG-4 as a standard, but it also has MPEG-2s. And the real beauty of encoding as an MPEG-2 is you actually will have your compression occur faster. So this movie is really about the idea that I'm going to show you where the Blu-ray pieces are, but then I'm going to turn around and remove the standard Apple Blu-ray and build my own custom MPEG-2 for the Blu-ray.
So now that you know where I'm going, I'm going to pick my Mission Statement Starting Point. You of course can take any single files you want. Coming from Final Cut Pro, you can do that as well. I'm going to drag and drop inside of Compressor. I'm going to start with the Blu-ray starting point. I'm going to roll open Apple. I'm going to role open the Disk Burning. I'm going to take certainly the audio I need. We again are using the same AC3 Files that we would build for a standard-def DVD. There's no difference between the two. It's a separate element from the video, and I'm going to use Apple's H.264 for the encode.
This is what we need to use for the proper format for Blu-ray DVDs, and at this point, I could hit Submit. I'm actually going to build and contrast a little bit with the MPEG-2, and there is no preset for this. So we're going to build that preset ourselves. So we'll actually compress, and we'll get all three pieces, just so we can compare a little bit of the difference, certainly the amount of time it takes to encode. So I'm going to go ahead here and I'm going to pick from this little plus drop down an MPEG-2. We're going to name this setting that we haven't use yet.
I'm going to call this MPEG-2 for BluRay. You'll notice I'm only Encoder tab. The Encoder tab well let me change the Quality, or how compressed our files are. For Blu-ray we have different specifications than for standard def, and you can see up top here it says Stream Usage standard def. When I go and switch this to Blu-ray, all those numbers change. And the real beauty here again is this idea that Blu-ray compression, when done as an MPEG-2, the computer doesn't need to be as powerful. Or, on a more powerful computer, your compression happens faster.
I'm going to let the Apple presets left alone, but you can modify them if you like. Then I'm going to give the description of this as MPEG-2 Blu-ray, and I'm going to put in here 18 megabits per second BBR. In fact, you should put that really in the full name, 18 megabits per second. And I think the only other think I'll tell you is you definitely want to change-- especially with MPEG-2 compression--from doing one analysis on immediately encoding to a two pass, really go in and do a full analysis pass and then come back and do its compression pass.
I'm going to go ahead and hit Save. We now have that. I'm just going to drag that up. We're going to end up getting three files: one audio, two video, one in H.264 format, one in MPEG-2 format. I'm going to go ahead and say Submit. More than anything else, we're interested in how long this takes. So when I hit Submit, we're going to actually roll this open and see what it's working on and how long it takes This is the first time we've really rolled this open on the title; in fact I'm going to tear off this window and just make it a little bit larger, so we can watch this take place. I very well expect the H.264 to take a significantly longer amount of time than the MPEG-2 file.
I want to make sure you're clear: normally you wouldn't build both the H.264 and the MPEG-2; you would build one of the two. I'm trying to show you that the MPEG-2 might be one you'd want to pick for a less lengthy compression time. When I go ahead and I take a look at the final finals, it took only about a minute for it to build the MPEG-2, and it took about two minutes for this file to build the Blu-ray file. This computer is pretty fast, and that really accounts for most of the difference. So if you're building a lot of Blu-ray, you may find a greater compatibility and a faster compression time by using an MPEG-2, rather than using an H.264 file.
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