Poor Video Quality after Streaming

Dear all,
We have been provided with a number of .mpg files from a
client and we have streamed then into Flash, using the usual
settings. When streamed however, the resulting video is of a poorer
quality than the original file.
Just wondering if anyone had any ideas - we are probably
doing something wrong, but we've tried a number of various options
when importing.
Any advice greatly appreciated.
The videos produced may be seen at:
http://www.atomicwebsolutions.com/foodesign07test/reel.asp
Many thanks
Dave

Hi B,
We used - at encoding screen:
Profile - Custom
Video Codec - tried On2 and Spark
Quality - High
Frame Rate - Same as Source
Key Frame Placement - Automatic
We used similar settings for .WMV files in the past and the
video quality was fine, but with .MPG files, the resulting quality
is much less than the original.
Best wishes
Dave

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Download link: http://www.klavierlehrer-bayern.de/download/test_mpeg2dvd_1.m2v
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