croft72, unfortunately the PS4 hardware is not designed to support audio CDs. The reader is only for DVDs and Blu-ray discs. The only way it would support audio CDs is if they changed the internal hardware. Though aside from that, I also look forward to the media support update for MP3s and hopefully external videos.
Do you have a link for that by chance? I was under the assumption that they could just change the focus of the lens through firmware to use the same laser like many dvd drives do. Just curious is all - it would suck to have to wait for a hardware revision.
As far as I know, it's hardware-based. At least, that's what I got from it. I have personally not seen any updates regarding audio CD support. Though it may be possible they can do it via firmware, so I could be wrong on that note. I just know it's been stated they will add MP3 and video support. So we'll see what happens in the future.