"Digital recordings are perishable in their own right —far less stable, in fact, than recordings on magnetic tape. A damaged analog tape is not necessarily a lost cause: An engineer may be able to perform restoration work and get the recording to play. But when a digital medium is compromised, it is most likely gone. Many masters from recent decades are kept on hard drives, notoriously fragile mechanisms that may not function after sitting for years in a vault. Today, labels increasingly rely on digital-tape formats like LTO. But LTO is backward compatible for just two generations. Labels must either continually retransfer their archives or maintain outdated playback equipment.
All these problems are exacerbated by the structure of the music business, in which hundreds of labels have been consolidated into three huge ones, which in turn have been absorbed by global conglomerates. The necessity of safeguarding a sound-recording heritage may appear abstract to executives at a distant parent company, who may simply see an expense on a balance sheet marked “Storage.” "—Jody Rosen
https://www.nytimes.com/2019/06/11/magazine/universal-fire-master-recordings.html
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