Probably not. It depends on guaranteed in-order packet arrival. In general the Internet very much does not guarantee that, so you would need control over all of

Probably not. It depends on guaranteed in-order packet arrival. In general the Internet very much does not guarantee that, so you would need control over all of the networks involved. Of course you can always tunnel over TCP (you need to tunnel over something, because you can't route multicast over the Internet either), but that would almost certainly eliminate the performance benefits.