Many many thanks for the effort in getting MP3 supported Peter
I've had an extensive listen this evening to a wide range of familiar tracks encoded at anywhere from CBR 320kbps all the way down to CBR & VBR 128kbps and I'm once again impressed with how you're processing this format !! Foobar is yet again a distant memory for me .. LOL
I tried some audiobooks which I have sampled at 64kbps and were unplayable, and it may well be the decoder you're using, but it's no big deal for those. I just mention it in case you haven't tried anything encoded at that lower bitrate.
Now for a couple of observations.
The function of moving from one track to the next is prone to a stumble now and then if using the transport buttons manually. It's almost as if the player forgets it has to start at the beginning of the next track requested and starts playing mid track close to the time it was at for the prior track. Hope that description makes sense.
The other noticeable difference playing the MP3's is that I needed to raise the Q1 level a couple of notches or increase the latency in the sound driver panel to prevent an occassional bout of stuttering/distortion. Not a major concern and may well be something you can address in the fine tuning of the internal decoding to WAV ( which is the way I presume you're handling things ).
All in all .... a jolly fine effort, and will save 100's of hours of needless re-ripping.
Cheers
Russ