Multi-layered compositions creating overly large compressed files

Hi there community!
FCP HD 4.5
I have a composition that involves 3 layers of video and 4 audio tracks. It is only short but when trying to compress a sample for the web I'm having difficulty getting the file size down to something reasonable, like between 3 - 5 MB as with my other clips. I've tried exporting the project in uncompressed format and then trying to compress from that single track file, but FCP treats it just the same as the original. The original has a few effects applied and I also modified the composition mode, so it is somewhat complex. I've been trying to compress to quicktime movie using the following:
video:
H.246
size 400 x 300
quality: medium
frame rate: 15 fps
encode: multi-pass - best
audio:
mpeg-4
Resulting file size is 17 MB for a 1 minute clip. Way too high.
These settings are ideal for my other stuff, but this clip is more complex. I'm a professional preparing video content for the web. What is the nack for squashing a complex project without losing too much quality?

You should be using Compressor (moreover, you should upgrade 4.5 to 5.1 before the offer runs out).
Prior to Compressor 2 (and if I want QT 6 compatible quicktimes), I use Sorenson Squeeze. At high quality, I generally get 640x480 resolution at 4MB for 30 seconds. Or I use Compressor and H.264 LAN.
Both do a far superior job to straight export from FCP.
Patrick

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