ffmpeg -i 03\ The\ Worst\ Day\ Since\ Yesterday.mp3 -acodec libaacplus -ab 64K -ac 2 -ar 44100 bla.m4a
ffmpeg version N-40926-g6374ee7 Copyright (c) 2000-2012 the FFmpeg developers
  built on May 30 2012 16:41:20 with llvm_gcc 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.9.00)
  configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libfaac --enable-libaacplus
  libavutil      51. 53.100 / 51. 53.100
  libavcodec     54. 21.101 / 54. 21.101
  libavformat    54.  5.101 / 54.  5.101
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 75.100 /  2. 75.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[mp3 @ 0x7f99ea01ae00] max_analyze_duration 5000000 reached at 5015510
[mp3 @ 0x7f99ea01ae00] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from '03 The Worst Day Since Yesterday.mp3':
  Metadata:
    title           : The Worst Day Since Yesterday
    artist          : Flogging Molly
    track           : 3/13
    album           : Swagger
    genre           : Rock
    BARCODE         : 603967132410
    TDOR            : 2007-03-06
    TIPL            : producer
    ALBUMARTISTSORT : Flogging Molly
    MusicBrainz Album Type: album
    MusicBrainz Album Id: f71f567e-ec6e-315a-8b2b-5c6898d7c230
    MusicBrainz Album Status: official
    artist-sort     : Flogging Molly
    publisher       : SideOneDummy Records
    MusicBrainz Album Artist Id: c3694ddc-f7e5-40dd-9fad-90d11a2c50fa
    MusicBrainz Artist Id: c3694ddc-f7e5-40dd-9fad-90d11a2c50fa
    album_artist    : Flogging Molly
    MusicBrainz Album Release Country: US
    date            : 2000
  Duration: 00:03:45.34, start: 0.000000, bitrate: 192 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
    Stream #0:1: Video: mjpeg, yuvj420p, 300x300 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
    Stream #0:2: Video: png, rgb24, 300x300, 90k tbr, 90k tbn, 90k tbc
    Metadata:
      title           :
      comment         : Other
Output #0, ipod, to 'bla.m4a':
  Metadata:
    title           : The Worst Day Since Yesterday
    artist          : Flogging Molly
    track           : 3/13
    album           : Swagger
    genre           : Rock
    BARCODE         : 603967132410
    TDOR            : 2007-03-06
    TIPL            : producer
    ALBUMARTISTSORT : Flogging Molly
    MusicBrainz Album Type: album
    MusicBrainz Album Id: f71f567e-ec6e-315a-8b2b-5c6898d7c230
    MusicBrainz Album Status: official
    artist-sort     : Flogging Molly
    publisher       : SideOneDummy Records
    MusicBrainz Album Artist Id: c3694ddc-f7e5-40dd-9fad-90d11a2c50fa
    MusicBrainz Artist Id: c3694ddc-f7e5-40dd-9fad-90d11a2c50fa
    album_artist    : Flogging Molly
    MusicBrainz Album Release Country: US
    date            : 2000
    Stream #0:0: Video: none, q=2-31, 128 kb/s, 90k tbn
    Metadata:
      title           :
      comment         : Other
    Stream #0:1: Audio: none, 44100 Hz, 2 channels, 128 kb/s
Stream mapping:
  Stream #0:1 -> #0:0 (mjpeg -> ?)
  Stream #0:0 -> #0:1 (mp3 -> libaacplus)
Encoder (codec none) not found for output stream #0:0