b. make corrections to errors you find in ink on the hard copy; never make corrections directly in the XML file
b. Also, quickly peruse each scanned page of the Nartang PDF files as you proof for:
c. When you correct text in Tibetan Machine Uni font you must also make the correction in the Wylie in the comment tag (<!-- -->) just above it in the XML file.
Below are links to resources to assist catalogers of particular editions.