I did a new test today because I was requested to. I used the original atrac3plus sample which can be found from the first message and I did a new one using new SonicStage 3.0. Here are my results.
foo_abx v1.2 report
foobar2000 v0.8.3
2005/03/04 11:11:43
File A: file://F:\lataus2\atrc3pls\castanets.wav
File B: file://F:\lataus2\atrc3pls\atrc3p-old.wav
11:11:43 : Test started.
11:13:31 : 01/01 50.0%
11:13:46 : 02/02 25.0%
11:14:05 : 03/03 12.5%
11:14:28 : 04/04 6.3%
11:14:46 : 05/05 3.1%
11:15:05 : 06/06 1.6%
11:15:20 : 07/07 0.8%
11:15:34 : 08/08 0.4%
11:15:42 : 09/09 0.2%
11:15:49 : 10/10 0.1%
11:16:00 : 11/11 0.0%
11:16:11 : 12/12 0.0%
11:16:15 : Test finished.
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Total: 12/12 (0.0%)
foo_abx v1.2 report
foobar2000 v0.8.3
2005/03/04 11:16:48
File A: file://F:\lataus2\atrc3pls\castanets.wav
File B: file://F:\lataus2\atrc3pls\atrc3p-ss3.0.wav
11:16:49 : Test started.
11:19:02 : 00/01 100.0%
11:20:00 : 01/02 75.0%
11:20:11 : 01/03 87.5%
11:20:41 : 01/04 93.8%
11:21:09 : 01/05 96.9%
11:21:58 : 02/06 89.1%
11:22:27 : 03/07 77.3%
11:22:47 : 04/08 63.7%
11:23:01 : 05/09 50.0%
11:23:24 : 06/10 37.7%
11:24:17 : 06/11 50.0%
11:24:34 : 06/12 61.3%
11:25:07 : 06/13 70.9%
11:25:30 : 07/14 60.5%
11:25:45 : 08/15 50.0%
11:26:09 : 08/16 59.8%
11:26:12 : Test finished.
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Total: 8/16 (59.8%)
It appears that Sony has done something. I've attached the new sample.