Clarification on Adobe XMP Packet

I would like to add some custom data to JPG images we are generating in our app. After much research I think the best approach is to include this information in the XMP packet and save it to the image, thus eliminating the need for side-car file.
Few questions:
The data I would like include is basic XML format:
<Node1><SubNode1>Value</SubNode1>
</Node1>
etc..
Is this a correct assumption that I can add this type of data to my XMP metadata in my image?
The steps need to accomplish this are to:
Open the image using the SDK
Get the XMP data using the SDK
Use the SDK to add this custom data to XMP object
Save XMP packet back to image
Are these assumptions and ideas way-off base or am I close to being on the correct track for this?
Regards

Hi,
almost right..
You can't store XMP as pure XML. You need to use the XMP data model. Please read the XMP specification for more details:
http://www.adobe.com/devnet/xmp.html
The steps you described are correct. You will use XMPFiles from the SDK to open/close the files and get/put the data from/to the file. And you will use XMPCore as the datamodel to add custom properties before putting it back into the file.
Hope this helps,
Samy
Adobe XMP Team

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Exit Code: 6 -------------------------------------- Summary -------------------------------------- - 0 fatal error(s), 8 error(s), 10 warning(s) WARNING: DW031: Payload:{6A2E619B-E4AC-433B-A648-D458CE543A96} Adobe XMP Panels CS5 3.0.0.0 has been updated

Exit Code: 6
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Hi Daniela,
Kindly check the Adobe - Adobe Creative Suite 3 Master Collection : System requirements
We would recommend you to copy the installer to the local machine and then try to install it.
If you still get this message try the download installer from : Download CS3 products
You should also check: Errors "Exit Code: 6," "Exit Code: 7" | CS5, CS5.5
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Clarification on Adobe XMP Packet

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