/// <summary>
        ///    Creates a deep copy of the current instance.
        /// </summary>
        /// <returns>
        ///    A new <see cref="Frame" /> object identical to the
        ///    current instance.
        /// </returns>
        public override Frame Clone()
        {
            MusicCdIdentifierFrame frame = new MusicCdIdentifierFrame();

            if (field_data != null)
            {
                frame.field_data = new ByteVector(field_data);
            }
            return(frame);
        }
        /// <summary>
        ///    Gets a music CD identifier frame from a specified tag,
        ///    optionally creating it if it does not exist.
        /// </summary>
        /// <param name="tag">
        ///    A <see cref="Tag" /> object to search in.
        /// </param>
        /// <param name="create">
        ///    A <see cref="bool" /> specifying whether or not to create
        ///    and add a new frame to the tag if a match is not found.
        /// </param>
        /// <returns>
        ///    A <see cref="MusicCdIdentifierFrame" /> object containing
        ///    the matching frame, or <see langword="null" /> if a match
        ///    wasn't found and <paramref name="create" /> is <see
        ///    langword="false" />.
        /// </returns>
        public static MusicCdIdentifierFrame Get(Tag tag, bool create)
        {
            MusicCdIdentifierFrame mcdi;

            foreach (Frame frame in tag)
            {
                mcdi = frame as MusicCdIdentifierFrame;

                if (mcdi != null)
                {
                    return(mcdi);
                }
            }

            if (!create)
            {
                return(null);
            }

            mcdi = new MusicCdIdentifierFrame();
            tag.AddFrame(mcdi);
            return(mcdi);
        }