diff --git a/src/mame/drivers/mosaic.cpp b/src/mame/drivers/mosaic.cpp
index 300b37c907f..6668145c9b3 100644
--- a/src/mame/drivers/mosaic.cpp
+++ b/src/mame/drivers/mosaic.cpp
@@ -16,9 +16,9 @@
 |A                                     |
 |M                                 PAL |
 |M                           12.288MHz |
-|A  14.31818MHz       PAL  6264  Z     |
-|       DSW                      1     |
-| VR                             8   10|
+|A  14.31818MHz       PAL  6264  Z    P|
+|       DSW                      1    I|
+| VR                             8    C|
 |        YM2203C              9  0     |
 +--------------------------------------+
 
diff --git a/src/mame/drivers/oneshot.cpp b/src/mame/drivers/oneshot.cpp
index a2406d0627b..59c379c77af 100644
--- a/src/mame/drivers/oneshot.cpp
+++ b/src/mame/drivers/oneshot.cpp
@@ -114,6 +114,14 @@ For One Shot One Kill:
  chip appears to be unpopulated for One Shot One Kill.
  The ROM board for One Shot One Kill has 8 additional logic chips along the front edge of the PCB
 
+For Mad Donna:
+ At least one PCB (in an eBay auction) has shown original ROM labels as:
+  MADDONNA
+  TMAD_B15  (B15 being the PCB location of ROM)
+  160595    (Date, IE: May 16th, 1995)
+
+ It has NOT be verified as to which set this corresponds to or if this set had been dumped.
+
 Clock measurements:
  SCN68000C8N64: 12MHz
      Z8400A PS: 3.375MHz (27MHz/8)