Gaussian Blur photoshop effect parameters

Hello,
Im working on svg format exporter, and what I need to do is to export some of AI effects as SVG filters.
I encountered a problem with Effect -> (PhotoshopEffects) Blur -> Gaussian Blur effect.
When getting the effect parameters there is some binary entry in the dictionary and it is not documented naywhere in the docs what type of data it that.
When serializing a document with GaussianBlur effect info fxg foramt, here is what you can find in the xml :
<ai:LiveEffect index="0" major="1" minor="0" name="PSAdapter_plugin_GblR">
    <ai:Dict data="B go 1 I PrevDres 300 I dataSize 24 ">
        <ai:Entry name="data" value="AAAAAVJkcyAAAAAAZG91Yj/xmZmgAAAA" valueType="N"/>
    </ai:Dict>
</ai:LiveEffect>
Attribute value holds the binary data describing the GaussianBlur effect with radius set to 1,1 value.
Can anybody tell how to decode the binary data so that I could dig out the radius value from it?
Thanks in advance,
Rafał

Ok, I found the problem so will leave the solution, maybe somebody will also need this.
So the value attribute value="AAAAAVJkcyAAAAAAZG91Yj/xmZmgAAAA" is base64 encoded.
When decoded it presents sth like this, where dots "." are zeros (actually below presented data represents gaussian blur effect data for radius == 2, not 1,1 like in previous post):
....Rds ....doub@.......
this is same data in hex
00 00 00 01 52 64 73 20 00 00 00 00 64 6f 75 62 40 00 00 00 00 00 00 00
and last 8 bytes represents a double number in big endian:
@....... == 40 00 00 00 00 00 00 00
Im working on windows, so after switching it to little endian we get
.......@ or 00 00 00 00 00 00 00 40
which is our radius in double format.
To be more precise the initial number in the binary data is typeIEEE64BitFloatingPoint, and can be googled in some Python/Apple's header files, here for instance http://svn.python.org/projects/python/trunk/Lib/plat-mac/Carbon/AppleEvents.py.
Cheers

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Model Name:    Mac Pro
Model Identifier:    MacPro5,1
Processor Name:    6-Core Intel Xeon
Processor Speed:    2.66 GHz
Number Of Processors:    2
Total Number Of Cores:    12
L2 Cache (per core):    256 KB
L3 Cache (per processor):    12 MB
Memory:    16 GB
Processor Interconnect Speed:    6.4 GT/s
Boot ROM Version:    MP51.007F.B00
SMC Version (system):    1.39f11
SMC Version (processor tray):    1.39f11

I'm getting this same issue - or a similar one. It seems to only happen when I run the Gaussian blur command, and during the same process in my workflow. It also seems for me to happen when I have made a selection from a layer above that is a smart object.
Let me describe the scenario that I have experienced a couple times in the past week. (BTW I just upgraded to CS5 only a couple weeks ago).
Usually I have a document open with dozens or hundreds of layers. The effect that I am executing when this seems to happen is where I have a group of shapes or placed image smart object layer and I'm creating a shadow layer by making a blank layer below said group or image, making a selection from the above group or image, and then filling the selection in the blank layer with a color - which I then run the Gaussian blur filter on, and afterward warp transform to get my realistic looking shadow effect.
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You can see the initial freak out in this screen shot from when I just initially selected the Gaussian blur filter from the menu (but had not yet even clicked "OK"): http://cl.ly/3KTx . The strange thing is that I had just run this series of steps on the above layer which in the screen shot you'll see as "Layer 44", and all was well.
Here's a screen shot showing the file after I closed it out, restarted Photoshop, and opened the file back up: http://cl.ly/3K2C . In case you can't tell, data from several layers all over the file is missing and corrupted.
I'm sure I don't have to explain how exasperating this is, as this represents more than a year's worth of work on a client project, no joke. Fortunately I'm mostly done with the actual site build, but that makes the loss of the artwork files of no less consquence - especially seeing as how I'm not ACTUALLY finished and I did in fact need all of that data to complete the project.
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- I have filed a bug report.
Dunno what else to describe, but I hope you guys can get this figured out, seriously. I paid way too much for my upgrade to CS5 to have bugs in key software features corrupt my files thank you.
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Model Name: Mac Pro
Model Identifier: MacPro4,1
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Total Number Of Cores: 8
L2 Cache (per core): 256 KB
L3 Cache (per processor): 8 MB
Memory: 16 GB
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Boot ROM Version: MP41.0081.B07
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5
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Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0640
Revision ID: 0x00a1
ROM Revision: 3386
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Display Connector:
Status: No Display Connected
LED Cinema Display:
Resolution: 1920 x 1200
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
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