Optimize Filesize export from Premiere CS3 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*Apologies for using outdated software.
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.