diff --git a/whatmp3.py b/whatmp3.py
index 4269fd0..056f16c 100755
--- a/whatmp3.py
+++ b/whatmp3.py
@@ -330,7 +330,8 @@ def main():
 
         for codec in codecs:
             outdir = os.path.basename(flacdir)
-            flacre = re.compile('FLAC', re.IGNORECASE)
+            flacre_str = '((16|24)+(-| )*(bit|44|48|96)* *)*FLAC( *(16|24)+(-| )*(bit|44|48|96)*)*'
+            flacre = re.compile(flacre_str, re.IGNORECASE)
             if flacre.search(outdir):
                 outdir = flacre.sub(codec, outdir)
             else: