Streaming videos from Cloudfront in Captivate 6

Hi,
I'm really hoping someone out there can explain this to me in as simple a way as possible.
I have a large project with 10 video files at various points throughout the course. I've run some tests with the videos set to progressively download, but they're not buffering very well. The video will pause to download (as expected), but as soon as it plays again it skips ahead to a later point in the video. The longest video is 2 minutes and I've managed to keep the file sizes around 10 to 20MB.
Since the progressive download route is failing dismally, I'm trying to set the videos up for streaming. We already use Amazon S3 and I have now enable Cloudfront as well. I've set up a dedicated bucket on S3 with some video files in it and edited the ACL accordingly (everyone can "read" the contents). Then I've created a distribution on Cloudfront.
The setup in Captivate for a video looks like this:
Video Type: Streaming Video
URI: rtmp://xxxxxxxxxx.cloudfront.net/cfx/st
Stream Name: mp4:Video 1.f4v
Autoplay = Yes
Auto Rewind = Yes
I've tried using an mp4 video. I've followed the workaround instructions here: http://blogs.adobe.com/captivate/2011/03/workaround-for-video-streaming-issues-in-captivat e.html. And, I've tried a few variations. Nothing has worked yet. If anybody has managed to work with Cloudfront and Cp6 and can provide step by step instructions for making it work, I'd really appreciate it if you could share your wisdom.
I wouldn't be surpirsed if I'm missing something obvious - e.g. I'm previewing in a browser (pushing f12 in Captivate) - should that work or should i be publishing and running the course from a server in order for the videos to show up?
Thanks in advance.

Hi Rod and Anjaneai,
I've tested the video again as an mp4 with all lower case and no spaces (just underscores) and still had no luck. I tried three Stream name variations: video_1 / video_1.mp4 / mp4:video_1
If the setup that I had above for the video type and URI is right, then maybe the problem lies on the Cloudfront side. Here's what I did there...
In S3, I created a new bucket at the top level as xyz-abc and put the video_1.mp4 in there. I edited the ACL to make the folder and sub-folders readable to everbody.
In Cloudfront, I then created a Streaming (not download) distribution and pointed it at xyz-abc.s3.amazonaws.com
The distribution is Enable and Deployed.
From there I added the video to my Cp 6 slide as an event video "already deployed to a server..." and put the following in to the URL field rtmp://xxxxxx.cloudfront.net/cfx/st and hit OK.
The Video is inserted with the following message: "Failed to load the video file. The file path or the URL may be invalid." I just said yes and fixed up the URI and so on under the video properties to match the setup in my original post (with the appropriate variations for the mp4 video instaed of f4v).
I tried to use the detect size feature, but that gives the same Invalid URL message.
I haven't once managed to import the video without seeing the error message, so that probably has a lot to do with why it's not working.
Please could you see if you can spot where I'm going wrong?
Thanks
Paul

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