Yeah, it is just resoloution and frame rates, yet some tv's (for example the one I have in the back room) runs black and white when switched to 60hz (ntsc rate), and its weird, yet the picture doesn't mess up like the old tv used to. The one in the front is fine with it.
I'm not sure if there is a way either i'm afraid. Some dvd players, tv's will be alright with it and will work fine, yet you might notice it studdering slightly since theres more frames on ntsc. (29.7 against 25 (pal))