do i get charged for viewing a preview of the embed code?

do i get charged for viewing a preview of the embed code?

Yikes...
I gotta say, I don't like that fact one bit.
It's a shame that we can't work on our videos, and preview them to make sure they are the way we like them before publishing them....without getting charged.

Our system does not know when a video has been officially published or not. We simply have a cost of delivering the files and we charge every time a video is watched. It might not be nice, but is simple and honest.

I just that uploading 16:9 video and set the parameters in a custom player yet the player seems to add letterboxes anyways... I've had to play the preview several times for each video to try and correct this problem - which still hasn't been fixed

Are you sure that:
We sometimes see people uploading letterboxed widescreen content (with black borders in the video stream), or players that are not widescreen.
Do you have an example page, e.g. a preview of the video+player you use?
Yes. These previews also come directly from the CDN.
We do not substract this traffic from your other traffic (nor do we have a way of knowing how much traffic the previews generated).