---
title: AsyncReadCD
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsimultimediacommandsdevice/1576169-asyncreadcd
---

# AsyncReadCD

## Declaration

```occ
virtual IOReturn AsyncReadCD(IOMemoryDescriptor *buffer, UInt32 block, UInt32 nblks, CDSectorArea sectorArea, CDSectorType sectorType, void *clientData);
```