Ok done some more troubleshooting ....

The PLAY link seems to be sensitive to whether the player is running, or in standby.

It would appear if the player software is running (not in standby), the PLAY command does in fact work.

If the player is in standby, the PLAY command will not wake the player AND play the playlist, however if I manually wake up the player (top button) the playlist begins where I had previously requested from the hijack web page.

If the player is in standby, the stream command works fine (altough the player appears to still be in standby mode - blinking LED)

Is this behaviour normal ? Hope this garbled description makes sense.