Method replacesthe tag value if the tag is present in the metadata tree, or null otherwise.

This method accesses the Rasterized Caption DataSet (2:125). The DataSet contains the rasterized objectdata description and is used where characters that have not been coded are required for the caption.

Contains 7360 bytes, consisting of binary data, one bit per pixel, two value bitmap where 1 (one) represents black and 0 (zero) represents white. Image width 460 pixels and image height 128 pixels. Scanning direction bottom to top, left to right.