LASTDIR=""
find <path> -iname \*.ogg -type f | while read FILE; do
    DIR="$( dirname "$FILE" )"
    NAME="$( basename "$FILE" )"
    NAME="${NAME/.ogg/}"
    TITLE="$( ogginfo "$FILE" | grep -i "title=" | cut -d"=" -f 2 )"
    TITLE="${TITLE/\//\\}"
    if [ -n "$TITLE" -a "$NAME" != "$TITLE" ]; then
        if [ "$LASTDIR" != "$DIR" ]; then
            echo "cd \"$DIR\" || exit 1"
            LASTDIR="$DIR"
        fi
        echo "mv '$NAME.ogg' '$TITLE.ogg'"
    fi
done | tee rename.sh && chmod 755 rename.sh && ./rename.sh