TalkStar Radio is playing A/OK on my SoundBridges with firmware versions 3.0.44 and 3.0.51 if I use mms://18.104.22.168/talkstar
. It does take about 10 or 15 seconds to start, however, with firmware version 3.0.51. Which firmware version is running on your SoundBridge?
The URL starting with RTSP will not play on the SoundBridge, as RTSP is not supported.
(Radio Roku Moderator)