In reply to:

16kbps, 11KHz, mono

The sample rate is another possibility. The hardware in the player is quite fussy about sample rates. Can you encode a test track at, say 128kbp/s 11kHz mono CBR, and see if you get the same problem? If you do, that rules out the bitrate as a likely cause.

I have a 8kb/s mono file, but it's just 10 seconds of silence, so I've not noticed anything odd. If I get time, I might encode something more substantial to play with.
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Toby Speight
030103016 (80GB Mk2a, blue)
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