---
title: CDSectorSize
framework: IOKit
role: symbol
role_heading: Enumeration
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/cdsectorsize
---

# CDSectorSize

## Declaration

```occ
typedef enum CDSectorSize : unsigned int {
    ...
} CDSectorSize;
```

## Topics

### Constants

- [kCDSectorSizeCDDA](iokit/cdsectorsize/kcdsectorsizecdda.md)
- [kCDSectorSizeMode1](iokit/cdsectorsize/kcdsectorsizemode1.md)
- [kCDSectorSizeMode2](iokit/cdsectorsize/kcdsectorsizemode2.md)
- [kCDSectorSizeMode2Form1](iokit/cdsectorsize/kcdsectorsizemode2form1.md)
- [kCDSectorSizeMode2Form2](iokit/cdsectorsize/kcdsectorsizemode2form2.md)
- [kCDSectorSizeWhole](iokit/cdsectorsize/kcdsectorsizewhole.md)