There are always people posting here having trouble with picture codecs and such. I just want to report that I have done 2 projects with very challenging sync issues and the client uploaded the picture to Vimeo. I dloaded the SD Mobile versions off a vimeo (which is the lowest resolution) and things worked very well in Sonar. I still rendered audio out of Sonar and use Vegas to marry the music and send it back for approval.
just reporting....