Additional audio tracks come in as extra audio PIDs in the program stream. It's on a per-channel basis (not per transponder). To make use of them, just go to your receiver's "audio languages" setting and select "language 2" for example. In the case of the Pansat 2500A, press the audio selection button on the remote. It's at the bottom left of the remote, with the picture of the speaker next to the question mark. Then you'll see what languages are available. Use the down arrow to move between languages. Some times one "language" (audio track) will actually have separate audio tracks on its left and right stereo channels. To select one of those further channels, press left or right. Note, however, left and right only act as "try next setup" rather than actually picking the left and right channels. In other words, no matter which (left, right) you press, it will always cycle to "left", "right", then both (stereo).
You can see a quick indicator on the 2500A of what's available per channel as you flip through them, since its info window shows the current audio selection in the lower right corner. If you see "Language 1" or some other number, there are multiple audio tracks. Otherwise, "Language" without a number indicates there's only one audio track.
Please excuse all the bloviation on that but I hope it all made sense. On an unrelated note, all you technofolks out there, this is my 0x200-th post.
You can see a quick indicator on the 2500A of what's available per channel as you flip through them, since its info window shows the current audio selection in the lower right corner. If you see "Language 1" or some other number, there are multiple audio tracks. Otherwise, "Language" without a number indicates there's only one audio track.
Please excuse all the bloviation on that but I hope it all made sense. On an unrelated note, all you technofolks out there, this is my 0x200-th post.
So Fox News is still at 45 or so. But I'm still keeping an eye out for the director's audio and haven't heard any yet. 
