An interesting Q & A at The Oxonian Review, where Courtney Traub has An Interview with Kevin Begos, Jr about this archival question:
Last autumn, the Bodleian Library's Special Collections Department faced an intriguing dilemma when it acquired a rare copy of Agrippa, a Book of the Dead, a hybrid print-digital work featuring a digitally encrypted poem by William Gibson that can only be read once before the data destroys itself. With artwork from noted American artist Dennis Ashbaugh, and referencing everything from genetic code to the Gutenberg Bible and Kodak scrapbook nostalgia, the book's digital element was designed to self-efface after a single "transmission". Chris Fletcher, head curator at the Special Collections, asked, "Do we conserve the book and vandalise the poem, or read the poem and lose the book ?"For more about Agrippa, a Book of the Dead, see also the official site.