What I am curious about are DS MOVIES. I know that some movies(such as the Intro of Final Fantasy III, and the Intros and Endings of March of the Minis)are in ACTimagine format, but I don't know how to play those on the PC.
I don't think you will find one. The Actimagine website states you need a licence. Quoted from it: In general, Mobiclip license is required for the * Encoder * Decoder Delivery of contents in Mobiclip Format
So that means we probably won't find a player for it.
I now have Yoshi Touch and Go running on my DS by way of my flashcart and my Action Replay DS (Nintendo, this is your chance to sue Datel!). This will help me in my quest when I decide to actually patch the thing, though darkfader's ndstool screws up the ROM so that the passme patcher doesn't work.
so vgmtrans does not do exactly what I want. I want to be able to call a specific program in the .sdat like program 1 or program 60 and here what is sounds like. When I was working on a game we had this ability through a devkit and nitroplayer.