compressor settings?

[Stewart Charles]

Im using compressor 3.05 I have a 2min 48 sec video shot in HDV 1080i
Ive made up a hd web clip for youtube at 720p and the file is 101Mb
Seeing as youtube has gone 1080p I thought Id have a go and see what its like. The file is 821Mb is this correct?

Im using these settings for the 1080p

Description: frame controls off
File Extension: mov
Estimated file size: unknown
Audio Encoder
IMA 4:1, Stereo (L R), 48.000 kHz
Video Encoder
Format: QT
Width: (100% of source)
Height: (100% of source)
Pixel aspect ratio: Default
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls: Automatically selected: Off
Codec Type: H.264
Multi-pass: On, frame reorder: On
Pixel depth: 24
Spatial quality: 75
Min. Spatial quality: 25
Key frame interval: 24
Temporal quality: 50
Min. temporal quality: 25

And this for 720p

Description: 1280x720
File Extension: .mov
Estimated file size: 2.15 GB/hour of source
Audio Encoder
AAC, Stereo (L R), 44.100 kHz
Video Encoder
Format: QT
Width: 1280
Height: 720
Pixel aspect ratio: Square
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls On:
Retiming: (Fast) Nearest Frame
Resize Filter: Linear Filter
Deinterlace Filter: Better (Motion Adaptive)
Adaptive Details: Off
Antialias: 0
Detail Level: 0
Field Output: Same as Source
Codec Type: H.264
Multi-pass: On, frame reorder: On
Pixel depth: 24
Spatial quality: 75
Min. Spatial quality: 25
Key frame interval: 12
Temporal quality: 50
Min. temporal quality: 25
Average data rate: 5.12 (Mbps)
thanks for any advice