diff --git a/cdrskin/cdrskin_timestamp.h b/cdrskin/cdrskin_timestamp.h
index d0d8eca..f74cbb5 100644
--- a/cdrskin/cdrskin_timestamp.h
+++ b/cdrskin/cdrskin_timestamp.h
@@ -1 +1 @@
-#define Cdrskin_timestamP "2015.11.01.195218"
+#define Cdrskin_timestamP "2015.11.02.151241"
diff --git a/libburn/mmc.c b/libburn/mmc.c
index 081222e..6f1892e 100644
--- a/libburn/mmc.c
+++ b/libburn/mmc.c
@@ -4330,7 +4330,8 @@ static int interpret_performance(struct burn_drive *d, struct command *c,
 		if (descr_type == 0x03) {
 			exact_bit = !!(pd[8 + i*16] & 2);
 			for (b = 0; b < 4 ; b++) {
-				end_lba     += pd[8 + i*16 +  4 + b]
+				end_lba     += ((unsigned long int)
+						pd[8 + i*16 +  4 + b])
 				               << (24 - 8 * b);
 				read_speed  += pd[8 + i*16 +  8 + b]
 				               << (24 - 8 * b);