---
title: BDTrackInfo
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 13.0+, macOS 10.5+]
path: iokit/bdtrackinfo
---

# BDTrackInfo

## Declaration

```occ
typedef struct BDTrackInfo {
    ...
} BDTrackInfo;
```

## Topics

### Instance Properties

- [blank](iokit/bdtrackinfo/1550843-blank.md)
- [clusterSize](iokit/bdtrackinfo/1550821-clustersize.md)
- [damage](iokit/bdtrackinfo/1550838-damage.md)
- [dataLength](iokit/bdtrackinfo/1550812-datalength.md)
- [freeBlocks](iokit/bdtrackinfo/1550842-freeblocks.md)
- [lastRecordedAddress](iokit/bdtrackinfo/1550804-lastrecordedaddress.md)
- [lastRecordedAddressValid](iokit/bdtrackinfo/1550801-lastrecordedaddressvalid.md)
- [nextWritableAddress](iokit/bdtrackinfo/1550817-nextwritableaddress.md)
- [nextWritableAddressValid](iokit/bdtrackinfo/1550832-nextwritableaddressvalid.md)
- [reserved](iokit/bdtrackinfo/1550800-reserved.md)
- [reserved2](iokit/bdtrackinfo/1550839-reserved2.md)
- [reserved3](iokit/bdtrackinfo/1550820-reserved3.md)
- [reserved4](iokit/bdtrackinfo/1550826-reserved4.md)
- [reserved5](iokit/bdtrackinfo/1550827-reserved5.md)
- [reserved6](iokit/bdtrackinfo/1550823-reserved6.md)
- [reserved7](iokit/bdtrackinfo/1550822-reserved7.md)
- [reservedTrack](iokit/bdtrackinfo/1550810-reservedtrack.md)
- [sessionNumberLSB](iokit/bdtrackinfo/1550824-sessionnumberlsb.md)
- [sessionNumberMSB](iokit/bdtrackinfo/1550805-sessionnumbermsb.md)
- [trackNumberLSB](iokit/bdtrackinfo/1550813-tracknumberlsb.md)
- [trackNumberMSB](iokit/bdtrackinfo/1550809-tracknumbermsb.md)
- [trackSize](iokit/bdtrackinfo/1550834-tracksize.md)
- [trackStartAddress](iokit/bdtrackinfo/1550807-trackstartaddress.md)