===== 11.8.4. Encoding Audio =====
VCD and SVCD support MPEG-1 layer II audio, using one of toolame, twol... er it should always be available to use. VCD only supports constant bitrate audio (CBR) whereas SVCD supports variable bitrate (VBR), too. Be careful when using VBR because some bad standalone players might not support it too well.
For DVD audio, libavcodec's AC-3 co