CBR file size shrinks

In compressor 2.3 when using cbr set at 8.3 it estimates my file size as 4.4gigs, but when it does all its magic my file size is 1.2 Gigs. HUH???
My only thought is that the video from FCP 5.1 is actually a series of pictures some of them up for a minute at a time. I know- this is not my typical project:)
my DVD looks good- not great. Any thoughts?
Thanks!

+"Or am I wrong in my understanding that VBR files are "potentially" smaller than their CBR counterparts?"+
The argument you heard was probably more like "a smaller VBR file can have equivalent audio quality to a larger CBR file." This is because, as Chris notes, they spend more bits on the more sonically complex passages, and less on the sonically simple passages.
If you want to experiment, you can compare 192 w/ VBR (it's a custom setting) versus 256 w/ CBR. But, if you are shooting for a particular file size to save space, CBR will be more predictable.
Message was edited by: ed2345

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VBR/CBR File Size

I am running into a perplexing issue regarding file sizes of VBR vs CBR encoding...
I have a my entire library of songs ripped from CDs that were encoded at AAC 256Kbs 44.1KHz. In the name of saving space (and after doing some reading), I re-ripped a few CDs using the same encoding settings, only selecting the VBR 256Kbs instead of strait 256Kbs (AAC of course). Now, I was expecting some slightly smaller files sizes, but what I found were files significantly larger than they were in the first place. Some gained 2MBs or more, depending on the length of the song. A possible variable in this, however, is that some of the songs in questions were ripped years ago...I'm guessing 2003 time frame using iTunes 4.x. Is it possible that with the years of iTunes updates that new/improved encoding techniques would result in larger files? Or am I wrong in my understanding that VBR files are "potentially" smaller than their CBR counterparts?
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G

+"Or am I wrong in my understanding that VBR files are "potentially" smaller than their CBR counterparts?"+
The argument you heard was probably more like "a smaller VBR file can have equivalent audio quality to a larger CBR file." This is because, as Chris notes, they spend more bits on the more sonically complex passages, and less on the sonically simple passages.
If you want to experiment, you can compare 192 w/ VBR (it's a custom setting) versus 256 w/ CBR. But, if you are shooting for a particular file size to save space, CBR will be more predictable.
Message was edited by: ed2345

Why are my QT file sizes shrinking?

I'm using the copy/paste features of QuickTime to put together four small pieces of my movie into one big piece. I do this by opening up all four QT files and then copying the entire contents of each of the final three QT files and pasting them all, one at a time, end to end, into the first QT file.
Here's the situation: all four pieces are about 300mb each; yet when I save the master file, the result is usually around 300mb.
In other words, there seems to be some data DISAPPEARING in the process. But when I open up the resulting big file, full screen size, and compare it side by side, to the original files, I see no image quality lost. Frame for frame.
I've repeated this process several times. Same result.
How can 3 + 3 + 3 + 3 = 3 ?
Shanked
PS the resulting file plays fine. The only reason I'm posting this "problem" is that I'm having repeated failure trying to upload my movie to IMDb's withoutabox website.
Message was edited by: Shanked

Thanks QuickTimeKirk,
I guess this is a big "duh" for me. I actually had thought I had been toggling that choice all along, because, frankly, it's the ONLY choice that comes up when trying to save. But for whatever reason, the file hadn't been saving that way, as in self-contained.
much obliged for your help!
Shanked

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How do you purge/compress/shrink the iPhoto11 folder/file size?
I have been using iPhoto since iLife'05 and have always upgraded with each iteration of iLife. Without exception, I had just recently upgraded to iPhoto'11 when iLife'11 came out. Because I have used iPhoto to store all my photos and videos taken over the last 5 years or so, my iPhoto folder/file has become bigger and bigger over time and so I moved it to an external hard-drive. My main iPhoto'11 folder/file has 14,367 photos, 995 videos and is indicated to be 83 GB by iPhoto'11. But "Get Info" in Finder reports a whopping 130 GB.
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I went on to try trashing away some of the folders and files inside and found that I could actually do it quite neatly if I go by the year which the photos are taken. After a lot of trial and error working on duplicate copy of my iPhoto '11 library, I am able to do away with all the clutter within the library and still open it normally.
Now my 44GB obese iPhoto'11 library has been slimmed down to just a little over 7 GB (5 GB as reported by iPhoto'11) and I am just comfortable dealing with 2 GB of "don't-know-what-info" of clutter within the library.
Remember my "One Photo Experimental" iPhoto'11 library that was 36.3 GB? I managed to bring it down to the realistic 22 MB size. This size is still double that of a brand new iPhoto'11 library I created to import 1 photo. However, it sure beat having 36.3 GB of clutter.
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How can I shrink my file size to a certain size?

Hello - I have gotten myself lost and frustrated. I made a sign that we are going to have printed, but in order to upload it to the company, the file can be no larger than 12MB. It was set at 300psi, but found out that it had to be 75psi. So, it went from 200MB to 14.4MB, but I can't get it down any further. It has three pictures, two text boxes and one image. All of the images have all been rasterized and grouped together. The two text boxes are grouped together, but I am now lost on how to get the file size any smaller. The pictures must stay the same. Is there something that I can do to the text to shrink that down? I just need to get 2.4MB smaller.
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I need to save some pictures from iPhoto to a SDHC photo card for a digital frame and was wondering if there is a way to shrink or compress file size for each picture as I have already cropped the pictures? Thank you

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CBR file size shrinks

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