Hi, i'm new member here and i have a little problem with upload clips to Shutterstock.

(sorry for my bad english)

I did the first exam to shutterstock and I have rejected all the videos.
To avoid being rejected again at the second attempt for the exam, I wrote to shutterstock to know what was the problem.

They told me:
There are two issues with your clip.  The first being that the aspect ratio is 2.2:1.  This may be due to the choice of using DVCPro.  DVCPro does not generate square pixels.  It is recommended that you change your codec to a more common codec such as PhotoJPEG or ProRes.  The second issue with your clip, is that it is letterboxed.  Please see the attached photo for an example.  You will need to stretch your image to reach the 1920x1080 resolution that you are trying to achieve.  With these two adjustments, your footage will likely be accepted.

So...
can someone tell me which codecs and formats should I use to create 1920x1080 video that will be accepted by shutterstock.
Mine is only a technical problem and not of unsuitable content or the height of the site.
Here are some screenshots that I did, about the settings of the composition and rendering of my movies:

http://tattic.altervista.org/img/Problem_Shutterstock.jpg

And this is ATTACHED PHOTO from Shutterstock:
http://tattic.altervista.org/img/Screen_Shot_2013-06-06_at_3.55.13_PM.jpg

Please HELP ME !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!