PS3 .msf format by Segcl at 7:41 AM EDT on October 10, 2014
Most of msf files playback normally with ATRAC3 decoder, and can be decoded with vgmstream. But I can't export those files with header [MSFC long(5)]. I tried many RIFF header combinations, nothing worked.
Some examples here: https://www.sendspace.com/file/9fp5ni Taken from PS3 Atelier series.