Well I have proved one thing; TV Portal/Internet radio works on the HD-Fox T2 in HDRmode. I don't normally have Time Shift Recording set to on so don't know if it records to the buffer. I don't expect my results to be any different from yours. (EP/BH)
There is a bit of confusion here. The TSR buffer is 0.ts (hidden away, I don't know how the file system works on an HD-FOX but on the HDR-FOX it is at /mnt/hd2/Tsr). The TSR buffer is used by the humaxtv process for live TV. This is not the same thing as the streaming buffer used (HDR-FOX) for iPlayer and YouTube, /mnt/hd3/Streamer_down_file (again I don't know where this is in HDR Mode on an HD-FOX, but the non-mod HD-FOX does not buffer iPlayer or YouTube). EP's experiment above proved the streaming buffer isn't used for Internet Radio, and the TV Portal apps each have their own code to support them. Supposing the TSR buffer was used, as far as live TV is concerned it appears to be encrypted.
There are no transport controls that might lead one to believe Internet Radio is buffered, and the low bandwidth of audio-only streams does not suggest any technical reason to need to buffer to disk (a small buffer in RAM would be enough). That does not rule it out, it just means that if there is a disk buffer nobody has found it yet.
I have a HDR-FOX T2. What I was hoping for was a way of capturing the mp3 stream from internet radio on to the hdd. I don't have any external recording equipment, otherwise I could just take the phono outs and record it, but I was hopign for some digital capture.
i record tv and radio through the humax, i listen to internet radio through it also, i could use the pc but it'd be more convenient to use the same device, for my usage using the pc would be more complicated, each to their own!