FSB Vorbis files

I used Unity Studio to extract audio files from Odoru? Pokemon Ongakutai as FSB files. However, FSB Extractor refuses to open them, saying "Access violation at address 0044A3BB in module 'FsbExtractor.exe'. Read of address 00000000." and "Not a valid FSB file format FileI 0x00000000." The table in the program says that the format is Vorbis.

Here's a few of the files:

  AudioClip.zip (Size: 44.68 KB / Downloads: 3)

Can someone help?

EDIT: It appears that this is also the case with the game Camp Pokemon. Are all FSB files used in Unity this way or something?