From the pitchfork link in comments:

> Unsurprisingly, Nicholas has a theory about this as well. “The situation that makes the most sense to me is that these minidiscs were digitized by a third party so the band could choose material from them for the OKNOTOK box set, and that someone involved at the third party stole the files and traded them,”

Digitized is an odd word choice. I’m pretty sure minidisc was already a digital format.

Yeah. I guess “digital transfer” might be more accurate.

The hackers leaked a minidisc archive.

Everyone has backups, and some of these minidiscs were probably used in the 20th anniversary OK Computer re-master and re-release (OKNOTOK).

The BBC reported that they had previously been digitised and placed in private online storage. Make of that what you will.

I assumed they somehow came into possession (stole) the actual minidisks.

They were using mind reading techniques to remember what was on the minidisc archive....... Ok, I'll show myself out.