Hey JennyS,
If you are going to supply content to a content aggregator, the one I work with wants pics in the format 1024 X 1024 pixels 300 dpi or mov clips in one of the following formats:
720x576.mov (uncompressed)
720x576.avi(uncompressed)
720x576.avi (3ivxD4.451 codec)
The aggregators them supplys the content to most phones and most phone networks.
I hope this helps
