Decoding of mono AT3+ using SonicStage

[gechdcb]

I think Super Robot Taisen Z Hakaihen use mono AT3+ file.

This is the sample file:

  Atrac-00004204-09246000.zip (Size: 14.25 KB / Downloads: 198)

and mplayer output:
Playing E:\PSP_EMU\Jpcsp\tmp\ULJS00379\Atrac\Atrac-00004204-09246000.oma.
Invalid seek to negative position!
libavformat file format detected.
[oma @ 01633f60] Unsupported codec ATRAC3+!
[oma @ 01633f60] Could not find codec parameters (Audio: [1][0][0][0] / 0x0001, 44100 Hz, 1 channels, 96 kb/s)
[oma @ 01633f60] Estimating duration from bitrate, this may be inaccurate
LAVF_header: av_find_stream_info() failed