user10740: After screen capturing a video and editing it with Premiere CS3*, I'd like some help optimizing the Quicktime filesize. I was wondering if I can get the ratio back to 1:1 at least. 
I have tried to best match my project settings to my original video type, but when I export my edit, the filesize increases from 55mb (10min) to 963mb (7min).
Original video Settings 

H.264 Codec / AAC 44.1khz, 448kbps Audio
1280*720 @ 25fps
VBR Bitrate (many still frames are present), High quality, High Profile

Premiere Project Settings

HDV 720p Preset
1280*720, 25fps
No fields (Progressive scan)
Video Rendering Setting: Maximum Bit Depth (unchecked), Optimize Stills (checked)

Movie Export Settings

H.264
1280*720, 25fps
Millions of Colours
Quality 86% (don't understand!)
Data Rate: Recompress - Always (checked) or Maintain Data Rate (unchecked)
Limit Data Rate: (unavailable)

Keyframe and Rendering: 

Bit Depth: Use Project Settings (checked)/ 8-bit (unchecked)/ Maximum (unchecked)
Fields: No Fields (Progressive Scan)/ Lower Field First (unchecked)/ Upper Field First (unchecked)
- De-interlace Video Footage (unchecked)
Optimize Stills (checked).

*Apologies for using outdated software.

user10740: I've now solved this problem. I was using Export > Movie, when I needed to go to Adobe Media Encoder to find more extensive options. I kept most settings the same, but believe turning 'Bitrate' off may have decreased the data rate. I got the filesize down to around 120mb, which is much better.
This video helped me find the Adobe Media Encoder.

10740: <p>After screen capturing a video and editing it with Premiere CS3*, I'd like some help optimizing the Quicktime filesize. I was wondering if I can get the ratio back to 1:1 at least. </p>

<p>I have tried to best match my project settings to my original video type, but when I export my edit, the filesize increases from 55mb (10min) to 963mb (7min).</p>

<p><strong>Original video Settings</strong> </p>

<ul>
<li>H.264 Codec / AAC 44.1khz, 448kbps Audio</li>
<li>1280*720 @ 25fps</li>
<li>VBR Bitrate (many still frames are present), High quality, High Profile</li>
</ul>

<p><strong>Premiere Project Settings</strong></p>

<ul>
<li>HDV 720p Preset</li>
<li>1280*720, 25fps</li>
<li>No fields (Progressive scan)</li>
<li>Video Rendering Setting: <em>Maximum Bit Depth (unchecked),</em> Optimize Stills (checked)</li>
</ul>

<p><strong>Movie Export Settings</strong></p>

<ul>
<li>H.264</li>
<li>1280*720, 25fps</li>
<li>Millions of Colours</li>
<li>Quality 86% (don't understand!)</li>
<li>Data Rate: Recompress - Always (checked) <em>or Maintain Data Rate (unchecked)</em>
<em>Limit Data Rate: (unavailable)</em></li>
</ul>

<p>Keyframe and Rendering: </p>

<ul>
<li>Bit Depth: Use Project Settings (checked)/ <em>8-bit (unchecked)/ Maximum (unchecked)</em></li>
<li>Fields: No Fields (Progressive Scan)/ <em>Lower Field First (unchecked)/ Upper Field First (unchecked)</em>
<em>- De-interlace Video Footage (unchecked)</em></li>
<li>Optimize Stills (checked).</li>
</ul>

<p>*Apologies for using outdated software.</p>
 10740: <p>I've now solved this problem. I was using Export > Movie, when I needed to go to Adobe Media Encoder to find more extensive options. I kept most settings the same, but believe turning 'Bitrate' off may have decreased the data rate. I got the filesize down to around 120mb, which is much better.</p>

<p>This <a href="https://www.youtube.com/watch?v=wpbCnsyqT9E&amp;index=1&amp;list=LLH33Qv2Js0HzGcLnTYIWkNw" rel="nofollow">video</a> helped me find the Adobe Media Encoder.</p>
