Hey ! I think you made a huge mistake !
It is written in their website: "After more than one year hard working, EX4DS Team finally complete the product development, considering as a milestone, because of the realization of playing AVI/RMVB on DS directly by iPlayer, which is also the unique one could to do so world-wide. iPlay is able to play all the main format of videos such as RMVB,RM,AVI,FLV,MPG,WMV on DS,and no converting,allowing you watching movies and listening to music on DS more convenient. "
Therefore, they say the Iplayer team and... them is the same team !! They can't lie, i know they're a lot of website which say "r4 Number 45451 is the best brand new card worldwide ! This is the current top-of-the-line in SLOT-1 carts." They don't say that, but they say that they made the IPlayer.