On Sabayon4 (2.6.27-sabayon) sweep v0.9.3 will not load any mp3 or ogg file. Any such file given either as a cli parameter, or using sweep's GUI (File - Open) keeps yielding a dialog box stating: libsndfile: Supported file format but file is malformed. : No such file or directory.
Yet, the file plays in any player with no difficulty.
libsndfile v1.0.17-r1...
2009-02-24 08:16:02 UTC in Sweep