Potentially a pixel aspect ratio issue because Premeiere loves to use NTSC/PAL/DV aspect ratios (non-square-pixel) resulting in videos that report differing square pixel resolutions.
If you have a source I can run it through a better encoder (per your requested specs/codec/bitrates) to see if that's the issue. I can even add the cue points if you give me times and labels. Just shoot me a private message to a link with a source. I know my encoder will handle it perfectly and it might answer your question.
Otherwise is there any reason you need to embed the f4v? Why not play it externally and avoid embedding altogether?
Are you addressing the size issue, the Publish issue, or both?
Also, we're not embedding the video at all (F4Vs can't be embedded), that's why it's so puzzling. We're referencing the video externally.
All of the above. I assumed you were trying to import (transcode) it into flash because you said: "Also, it takes no time at all to import.". It didn't make sense to me either but this is a very general forum and people do some odd things, so we have to ask.
If you comment out the line of code that actually loads the video, are you saying it publishes faster? What is your publish target?
My apologies. I meant when I select Import Video… it doesn't take any time at all to process, but it's not being embedded, omnly referenced. That's what is so puzzlng about it.
Feel free to take a look at it. I appreciate any advice you might have: https://www.dropbox.com/s/q0mvd53gdmjswam/CV.VideoTest.zip
BTW, some of the elements are in a state of disarray. The designer originally started the project in AS2, and then switched over to AS3. Right now, we're just trying to focus on the video issue.
I did see you mention Premiere CS6 in the OP which is why I merely offered to recompress the video for you to assure the video isn't your issue. I can't do anything with the f4v besides tell you my tools report the same dimensions, 1.0par and 29.97fps.
I don't have Flash CS6, I'm still in CS5.5. I don't develop in Flash, I use Flash Builder 4.6. Maybe once 4.7 is released I'll grab CS6 but until then all I can really offer to help is to take an uncompressed version of your video to recompress to something that I know will be 100% correct size, pixel aspect ratio and friendly to flash. It may solve some distaste CS6 has with your current F4V. Although being external, I'd be suprised.
If you export from Premiere CS6 the easiest codec to use is Quicktime Animation, millions of colors (no alpha), max quality. It will be lossless. File size doesn't scare me so if you send me that lossless MOV file I can make you a f4v that's guaranteed to work. At least you'll know if the f4v has anything to do with your publishing issue.
Actually, I think I can take it from here. Thanks so much for the assistance.
You're welcome and good luck!