Mount a damaged disc, memory image, or born-digital record on a single axis. Spindle reads it radially — recovery sweeps outward from the hub as a warm arc, and every cold sector waits, labelled, until the head clears it.
Spindle never shows a glitch without its provenance. Damage is material — a ring, an offset, a checksum — never an effect.
Tracks that read cleanly under the head. Their checksums verify against the master index and lock immediately.
Sectors that failed the first read are queued for a slow sweep at reduced spindle speed — patience over force.
Where the pits are physically gone, Spindle logs the gap by ring, offset, and angle so reconstruction can model it.
The disc lands on the spindle; Spindle maps its rings and offsets before reading a single byte.
The head reads outward from the hub. Clean tracks light amber; failed tracks fall to cold blue.
Cold sectors get a second, slower pass. Most clear; the rest are logged as void with their coordinates.
Verified tracks lock to the master. The platter unspools into a sequential, auditable ledger.
Spindle runs on the bench or in the rack. Point it at a disc image, set the spindle speed, and let the head do the rest.