Remarkably, the master tapes of the Bach and Mozart material had been preserved in excellent condition, though that didn't mean the remastering went without a hitch. Editing used to mean physically cutting the tape and splicing it back together, but over the years the splicing tape had lost its stickiness, so the 50–year–old edits would often fall apart. Each time that happened, the cutting process had to be restarted, wasting a £50 vinyl lacquer (from which subsequent copies would be made) on each occasion. Hutchison then tried four different pressing plants before finding one he was satisfied with, after destroying two full pressing runs which he considered substandard. He is adamant that the recreated LPs should sound exactly as they were originally intended to, and not modified to reflect current tastes.