There's no difference for the network what data takes up the blockspace as long as there's a free market for fees. Big transactions pay big fees, this is how Bitcoin works.
Discussion
I know you want to make Bitcoin audio / video straming service but this is not what Bitcoin is for.
Bitcoin is THE Global Most Secure Decentralized Unconfiscatable Peer-to-Peer Scarce Hard Sovereign Freedom Money and Greatest Store of Value
And should remain being that.
