http://bugs.winehq.org/show_bug.cgi?id=29511
--- Comment #5 from A Wine user RandomAccountName@mail.com 2012-01-07 03:13:09 CST --- Some of the BGM files included with the demo for Chantelise seem to exhibit the same behavior:
http://www.carpefulgur.com/chantelise/CE_demo.exe (243MB download)
The file at <program directory>/bgm/town.wav can be opened with IrfanView in 1.1.32, but gets cut off. Since 1.1.33, it fails to open at all, with an added "out of range" error. This is consistent with the originally tested file.