Partially answering my own question, "iso-info" from the libcdio-utils package prints out the Logical Sector Number for files which is probably what I need, at least it can be translated into the Logical Block Address, I just need to figure out mapping the numbers from ddrescue's log files into that space (offset for TOC etc.)
-- Jonathan Dowland Please do not CC me, I am subscribed to the list.
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