Check your Ogg Vorbis files and ensure they're not corrupted.

oggcheck.sh

#!/bin/bash

BASEDIR=$1

if [ -z "$BASEDIR" ] ; then
  echo "Usage: oggcheck directory"
  exit -1
fi

if [ ! -d "$BASEDIR" ] ; then
  echo "Directory $BASEDIR not found"
  exit -1
fi

DIRLIST=`ls -1d "$BASEDIR/"*`
IFS="
"

for DIRECTORY in $DIRLIST ; do
  [ ! -d "$DIRECTORY" ] && continue
  OGGFILES=`ls -1d "$DIRECTORY/"*.ogg`

  for OGGFILE in $OGGFILES ; do
    WARNING=`ogginfo "$OGGFILE" | grep -E 'arning|bug'`
    if [[ ! -z "$WARNING" ]] ; then
      echo "$DIRECTORY is corrupt."
      break
    fi
  done
done