maplay version 1.2 is the second release of my MPEG audio player/decoder. It decodes layer I and layer II MPEG audio streams and plays them using a CD-quality audio device. The player supports all modes, which are single channel, stereo, joint stereo and dual channel, and all bitrates except free mode. The missing free mode support should not be a problem for now, because I haven't seen such a stream yet. Besides realtime playing of audio streams, maplay can decode streams to stdout for further conversions. The output consists of 16 bit signed PCM values. For stereo streams, the values are interleaved, which means that a value for the left channel is followed by a value for the right channel and so on. If maplay has been compiled for u-law output, the output consists of 8 bit u-law samples at a rate of 8 kHz, no matter what frequency the stream uses.