diff --git a/coregrind/m_syswrap/syswrap-generic.c b/coregrind/m_syswrap/syswrap-generic.c
index fc18c46..3054738 100644
--- a/coregrind/m_syswrap/syswrap-generic.c
+++ b/coregrind/m_syswrap/syswrap-generic.c
@@ -3624,6 +3624,10 @@
       PRE_MEM_WRITE( "ioctl(CDROMVOLREAD)", ARG3,
 		     sizeof(struct vki_cdrom_volctrl));
       break;
+   case VKI_CDROMREADRAW: /* 0x5314 */
+      PRE_MEM_READ( "ioctl(CDROMREADRAW)", ARG3, sizeof(struct vki_cdrom_msf));
+      PRE_MEM_WRITE( "ioctl(CDROMREADRAW)", ARG3, VKI_CD_FRAMESIZE_RAW);
+      break;
    case VKI_CDROMREADAUDIO: /* 0x530e */
       PRE_MEM_READ( "ioctl(CDROMREADAUDIO)", ARG3,
 		     sizeof (struct vki_cdrom_read_audio));
@@ -4295,7 +4299,7 @@
       POST_MEM_WRITE(ARG3, sizeof(struct vki_cdrom_tochdr));
       break;
    case VKI_CDROMREADTOCENTRY:
-      POST_MEM_WRITE(ARG3, sizeof(struct vki_cdrom_tochdr));
+      POST_MEM_WRITE(ARG3, sizeof(struct vki_cdrom_tocentry));
       break;
    case VKI_CDROMMULTISESSION:
       POST_MEM_WRITE(ARG3, sizeof(struct vki_cdrom_multisession));
@@ -4303,6 +4307,9 @@
    case VKI_CDROMVOLREAD:
       POST_MEM_WRITE(ARG3, sizeof(struct vki_cdrom_volctrl));
       break;
+   case VKI_CDROMREADRAW:
+      POST_MEM_WRITE(ARG3, VKI_CD_FRAMESIZE_RAW);
+      break;
    case VKI_CDROMREADAUDIO:
    {
       struct vki_cdrom_read_audio *cra = (struct vki_cdrom_read_audio *) ARG3;
diff --git a/include/vki-linux.h b/include/vki-linux.h
index 3dc701b..1d60342 100644
--- a/include/vki-linux.h
+++ b/include/vki-linux.h
@@ -1620,6 +1620,8 @@
                                            if available (struct cdrom_mcn) */
 #define VKI_CDROMVOLREAD	0x5313 /* Get the drive's volume setting
                                           (struct cdrom_volctrl) */
+#define VKI_CDROMREADRAW	0x5314	/* read data in raw mode (2352 Bytes)
+                                           (struct cdrom_read) */
 #define VKI_CDROM_CLEAR_OPTIONS	0x5321  /* Clear behavior options */
 #define VKI_CDROM_DRIVE_STATUS	0x5326  /* Get tray position, etc. */