ATAPI characteristics:
ATAPI device
Model: SAMSUNG CD-ROM SC-148F
Firmware revision: PS04
Supported ATA versions: ATA-1 ATA-2 ATA/ATAPI-4
Maximum ATA revision supported: Minor ATA version not specified
Parallel ATA device:
PIO timing mode: 4
DMA timing mode: 2
Advanced PIO: PIO0 PIO1
Multi-word DMA: MDMA0 MDMA1 MDMA2 (active)

ATAPI CD-ROM/DVD/etc device
Device shall set DRQ within 50 µs of receiving PACKET
ATAPI device uses 12 byte command packet
Device capabilities:
IORDY is supported
DMA is supported
At minimum 120 ns. transfer cycle time per word in MDMA, 150 ns. recommended
At minimum 227 ns. transfer cycle time per word in PIO, without flow control
At minimum 120 ns. transfer cycle time per word in PIO, with IORDY flow control
Command set and features:
28-bit LBA is supported

SCSI characteristics:
Vendor: SAMSUNG
Product: CD-ROM SC-148F
Revision: PS04
Device is connected and supported.
CD-ROM/DVD/etc device
Device claims to comply with ANSI X3.408:2005 (SPC-3)
Device does not claim to comply with any SCSI ECMA standard
Device does not claim to comply with any SCSI ISO/IEC standard
Device is removable
Device supports setting Normal ACA
Device supports LUN hierarchical addressing
Device does not support asymmetrical access
Device supports only ST clocking