Single optical disc track descriptor (sequence, type, LBAs, session, ISRC, flags).
uint8_t session
Session number (1-based). 1 for single-session discs.
uint8_t flags
Control / attribute bitfield (see file documentation for suggested bit mapping).
int64_t end
Inclusive ending LBA of the track.
int64_t pregap
Pre-gap length in sectors preceding track start (0 if none).
uint8_t sequence
Track number (1..99 typical for CD audio/data). 0 may indicate placeholder/non-standard.
int64_t start
Inclusive starting LBA of the track.
uint8_t type
Track type (value from TrackType).
uint8_t isrc[13]
ISRC raw 13-byte code (no null terminator). All zeros if not present.