diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index d557841..2e30571 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -544,6 +544,7 @@
 {
 	struct ide_atapi_pc *pc = drive->pc;
 	ide_hwif_t *hwif = drive->hwif;
+	u32 tf_flags;
 	u16 bcount;
 	u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
 
@@ -574,8 +575,14 @@
 	if (!drive->dma)
 		pc->flags &= ~PC_FLAG_DMA_OK;
 
-	ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount,
-			   drive->dma);
+	if (scsi)
+		tf_flags = 0;
+	else if (drive->media == ide_cdrom || drive->media == ide_optical)
+		tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
+	else
+		tf_flags = IDE_TFLAG_OUT_DEVICE;
+
+	ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
 
 	/* Issue the packet command */
 	if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {