bob@milton:~/Desktop$ avconv -i thursday_night.mp4 -target pal-dvd output.mpeg
avconv version 0.8.1-4:0.8.1-0ubuntu1, Copyright (c) 2000-2011 the Libav developers
  built on Mar 22 2012 05:09:06 with gcc 4.6.3
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1x01 - A New Beginning.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
    creation_time   : 2007-09-05 09:11:25
  Duration: 00:23:11.13, start: 0.000000, bitrate: 814 kb/s
    Stream #0.0(und): Video: h264 (High), yuv420p, 560x416, 740 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
    Metadata:
      creation_time   : 2007-09-05 09:11:25
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 71 kb/s
    Metadata:
      creation_time   : 2007-09-05 09:11:31
File 'mpeg/test' already exists. Overwrite ? [y/N] y
[buffer @ 0xabdaa0] w:560 h:416 pixfmt:yuv420p
[scale @ 0xabe760] w:560 h:416 fmt:yuv420p -> w:720 h:576 fmt:yuv420p flags:0x4
Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt'
Output #0, dvd, to 'mpeg/test':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
    creation_time   : 2007-09-05 09:11:25
    encoder         : Lavf53.21.0
    Stream #0.0(und): Video: mpeg2video, yuv420p, 720x576, q=2-31, 6000 kb/s, 90k tbn, 25 tbc
    Metadata:
      creation_time   : 2007-09-05 09:11:25
    Stream #0.1(eng): Audio: ac3, 48000 Hz, stereo, flt, 448 kb/s
    Metadata:
      creation_time   : 2007-09-05 09:11:31
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> mpeg2video)
  Stream #0:1 -> #0:1 (aac -> ac3)
Press ctrl-c to stop encoding
[mpeg2video @ 0xabf140] rc buffer underflow