[rescue] Various machines for sale

[Maciej W. Rozycki]

On Thu, 9 Jan 2025, Lionel Peterson via rescue wrote:

> Confused, IDE CD-ROM drives were quite common, did they require some 
> "non-plain" IDE command set?

 They were ATAPI, "ATA Packet Interface", which shortly, is a protocol 
layered on top of IDE, where short IDE data transfers (packets) initiated 
with IDE Read/Write commands carry actual commands and their responses 
communicated with the device (e.g. CD-ROM).  The commands and responses 
within those packets are actually as per the SCSI protocol.

 Did I answer your question?

  Maciej