diff --git a/src/cdrom/cdrom.c b/src/cdrom/cdrom.c
index 87bf598..407f3e7 100644
--- a/src/cdrom/cdrom.c
+++ b/src/cdrom/cdrom.c
@@ -911,7 +911,6 @@ static void cdrom_command_common(uint8_t id)
 			case 0xb8:
 			case 0xb9:
 			case 0xbe:
-				/* bytes_per_second = 150.0 * 1024.0; */
 				bytes_per_second = (1000000.0 / 12000.0) * 2048.0;	/* Account for seek time. */
 				bytes_per_second *= (double)cdrom_speeds[dev->cur_speed].speed;
 				break;
@@ -921,12 +920,13 @@ static void cdrom_command_common(uint8_t id)
 					dev->callback = -1LL;	/* Speed depends on SCSI controller */
 					return;
 				}
+				break;
 		}
 
 		period = 1000000.0 / bytes_per_second;
 		dusec = (double) TIMER_USEC;
 		dusec = dusec * period * (double) (dev->packet_len);
-		dev->callback = ((int64_t) dusec);
+		dev->callback += ((int64_t) dusec);
 	}
 	cdrom_set_callback(id);
 }
@@ -1573,10 +1573,11 @@ skip_ready_check:
 void cdrom_clear_callback(uint8_t channel)
 {
 	uint8_t id = atapi_cdrom_drives[channel];
-	cdrom_t *dev = cdrom[id];
+	cdrom_t *dev;
 
 	if (id < CDROM_NUM)
 	{
+		dev = cdrom[id];
 		dev->callback = 0LL;
 		cdrom_set_callback(id);
 	}
@@ -1826,9 +1827,7 @@ void cdrom_command(uint8_t id, uint8_t *cdb)
 		case GPCMD_SET_SPEED_ALT:
 			len = (cdb[3] | (cdb[2] << 8)) / 176;
 			dev->cur_speed = cdrom_speed_idx(len);
-			if (dev->cur_speed < 1)
-				dev->cur_speed = 0;
-			else if (dev->cur_speed > cdrom_drives[id].speed_idx)
+			if (dev->cur_speed > cdrom_drives[id].speed_idx)
 				dev->cur_speed = cdrom_drives[id].speed_idx;
 			cdrom_set_phase(id, SCSI_PHASE_STATUS);
 			cdrom_command_complete(id);
@@ -1988,6 +1987,9 @@ cdrom_readtoc_fallback:
 					break;
 			}
 
+			dev->seek_diff = ABS((int) (pos - dev->seek_pos));
+			dev->seek_pos = dev->sector_pos;
+
 			if (!dev->sector_len) {
 				cdrom_set_phase(id, SCSI_PHASE_STATUS);
 				/* cdrom_log("CD-ROM %i: All done - callback set\n", id); */
@@ -2957,12 +2959,6 @@ int cdrom_read_from_ide_dma(uint8_t channel)
 	return 0;
 }
 
-void cdrom_irq_raise(uint8_t id)
-{
-	if (cdrom_drives[id].bus_type < CDROM_BUS_SCSI)
-		ide_irq_raise(&(ide_drives[cdrom_drives[id].ide_channel]));
-}
-
 int cdrom_read_from_scsi_dma(uint8_t scsi_id, uint8_t scsi_lun)
 {
 	uint8_t id = scsi_cdrom_drives[scsi_id][scsi_lun];
@@ -2978,6 +2974,12 @@ int cdrom_read_from_scsi_dma(uint8_t scsi_id, uint8_t scsi_lun)
 	return 1;
 }
 
+void cdrom_irq_raise(uint8_t id)
+{
+	if (cdrom_drives[id].bus_type < CDROM_BUS_SCSI)
+		ide_irq_raise(&(ide_drives[cdrom_drives[id].ide_channel]));
+}
+
 int cdrom_read_from_dma(uint8_t id)
 {
 	cdrom_t *dev = cdrom[id];
diff --git a/src/cdrom/cdrom_image.cpp b/src/cdrom/cdrom_image.cpp
index 2c6a568..2cfc61d 100644
--- a/src/cdrom/cdrom_image.cpp
+++ b/src/cdrom/cdrom_image.cpp
@@ -8,7 +8,7 @@
  *
  *		CD-ROM image support.
  *
- * Version:	@(#)cdrom_image.cpp	1.0.5	2018/03/18
+ * Version:	@(#)cdrom_image.cpp	1.0.6	2018/03/20
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -100,8 +100,6 @@ void image_audio_callback(uint8_t id, int16_t *output, int len)
 {
 	cdrom_t *dev = cdrom[id];
 
-	return;	/*FIXME: why? */
-
         if (!cdrom_drives[id].sound_on || (dev->cd_state != CD_PLAYING) || cdrom_image[id].image_is_iso)
         {
 		cdrom_image_log("image_audio_callback(i): Not playing\n", id);
diff --git a/src/cdrom/cdrom_image.h b/src/cdrom/cdrom_image.h
index d35756b..d8e9e39 100644
--- a/src/cdrom/cdrom_image.h
+++ b/src/cdrom/cdrom_image.h
@@ -11,7 +11,7 @@
  *		This header file lists the functions provided by
  *		various platform specific cdrom-ioctl files.
  *
- * Version:	@(#)cdrom_image.h	1.0.1	2018/02/14
+ * Version:	@(#)cdrom_image.h	1.0.2	2018/03/20
  *
  * Authors:	Miran Grca, <mgrca8@gmail.com>
  *		RichardG, <richardg867@gmail.com>
@@ -52,9 +52,6 @@ extern void	image_close(uint8_t id);
 
 extern void	cdrom_set_null_handler(uint8_t id);
 
-//FIXME: delete this!  --FvK
-extern void	update_status_bar_icon_state(int tag, int state);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/device.c b/src/device.c
index 4a98278..8dc71dc 100644
--- a/src/device.c
+++ b/src/device.c
@@ -9,7 +9,7 @@
  *		Implementation of the generic device interface to handle
  *		all devices attached to the emulator.
  *
- * Version:	@(#)device.c	1.0.4	2018/03/15
+ * Version:	@(#)device.c	1.0.5	2018/03/20
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -130,7 +130,6 @@ device_close_all(void)
 
     for (c=0; c<DEVICE_MAX; c++) {
 	if (devices[c] != NULL) {
-pclog("DEVICE: closing device '%s'\n", devices[c]->name);
 		if (devices[c]->close != NULL)
 			devices[c]->close(device_priv[c]);
 		devices[c] = device_priv[c] = NULL;