The G2 player can play surestream, but requires 32 meg of ram and system 8.1 at least; the G2 player prefers 64 meg of ram. The older real player (5.0) can play streaming files, but ONLY if they have been prepared with the OLDER format.
Real Player 7 Plus requires at least system 8.1, power PC, 32 meg of RAM but prefers 8.5, 64 meg of ram, 233 mhz computer