OOPS - WRONG FORUM. SORRY FOLKS!
I can't find anywhere on this site (or elsewhere) advice about what formats of AAC file Nokia phones will play. Do capable devices play all bit-rates/packings etc?
Furthermore (and I bet I'm going to be disappointed here) on a Nokia 6820, an AAC file is a recognised file type (MP3 and WAV are not), but the phone refuses to play any that I've created so far. AAC is not listed as a supported type for this handset, so I'm surprised it recognises it, and moderately hopeful that it'll play if I just get the coding right?