The specs on the Nokia website are a little vague, but it looks like it will play H264+AAC MP4s which I think are also suitable for the iTouch. You will probably need to experiment with different screen sizes and bitrates if you want one file type that you can use on both. DVD to Mobile has its own sub-forum now, post there for a more focused response in the future. You can access it at the top of this forum's home page. See if you can get better video specs from Nokia (may be in the user's manual).