Contentbase Issues - Why does it create 2 proxies for every video assett?

Question

I am trying to deploy a SAN and a Media Asset Management System. After testing Final Cut Server, I've noticed that within the Proxies.bundle you get:
1) Duplicate Thumbnails
2) Duplicate Poster Frames
3) Duplicate Low Resolution Video Proxies
Why dublicate everything? I want to SAVE SPACE and if I have to create proxies (since you can't really turn this off yet), why take up twice the space?
Also, Why can't I control or alter the thumbnail or poster frame image generated? I might not want to pick the first frame of video. I might want to change it.
I see no place in the Admin panel to address these issues...At All!
Anyone know what's up?

Answer 1

Thanks so far Nicholas and Chris,
Here's the thing: I've read both the admin guide and the peachpit book on FCS now. I don't understand a few things:
1) If I import a FCP project as an asset, it will copy all media associated with the project to either the Media or Library folder. Wow Great. But when it make the proxies (Thumbnail, Poster frame, Low Res Copy--Not Editing Proxy; this isn't enabled in my setup now), it creates a series of folders like:
00000000001a
00000000001b
00000000001c
00000000001d
And in each you get the XML, the thumbnail, the poster frame, and the low res proxy.
However, then it duplicates three files: the thumbnail, poster frame and low res proxy into three more folders:
00000000001e
00000000001f
00000000001g
These are literally the exact duplicate of the first three proxies. (The XML is not duplicated.) If I delete these duplicates manually, the system still works, provides previews, a thumbnail, etc. inside the user UI; no problems.
Additionally, if I import media/an asset directly--not attached to a project--it only creates one set of proxies and no duplicates.
This leads me to believe that it is making proxies for both the media asset and the project file, instead of one set of proxies for both.
Either way, I need a "better way" to integrate our workflow with FCS at our web video company. We have some 5200 raw media files I need to catalogue and import. Most of these files have been edited and exported into final conformed shows--those are about 3700 final QuickTimes.
We also have tons of other still photos, and gfx, that I would like to catalogue. Before I start moving stuff into FCS, I want to be sure that I am not wasting proxy space.
If either of you has more time, I would be grateful to follow up with more technical questions and workflow solutions.
Thanks,
Shawn Larkin