[SamuriHL]

That idea has been discussed on another forum. As one person pointed out, "eyeballing" it is not going to be very productive. If you don't know what you're searching for, finding it will be impossible even if you believe you have "identical" streams, which of course they're not. One is a DTS-HD MA track, and even if you convert it to AC3 it'll still be different than the DVD's AC3 track. Even if they were theoretically identical, finding the signal embedded isn't going to be easy. Certainly not really possible just looking at them visually.