diff --git a/src/mame/drivers/magicard.cpp b/src/mame/drivers/magicard.cpp
index fe201e8000e..cade2daa1b7 100644
--- a/src/mame/drivers/magicard.cpp
+++ b/src/mame/drivers/magicard.cpp
@@ -680,7 +680,6 @@ static ADDRESS_MAP_START( magicard_mem, AS_PROGRAM, 16, magicard_state )
 	AM_RANGE(0x001ffd00, 0x001ffd01) AM_MIRROR(0x7fe00000) AM_DEVWRITE8("ramdac", ramdac_device, index_w, 0x00ff)
 	AM_RANGE(0x001ffd02, 0x001ffd03) AM_MIRROR(0x7fe00000) AM_DEVWRITE8("ramdac", ramdac_device, pal_w, 0x00ff)
 	AM_RANGE(0x001ffd04, 0x001ffd05) AM_MIRROR(0x7fe00000) AM_DEVWRITE8("ramdac", ramdac_device, mask_w, 0x00ff)
-	/*not the right sound chip,unknown type,it should be an ADPCM with 8 channels.*/
 	AM_RANGE(0x001ffd40, 0x001ffd43) AM_MIRROR(0x7fe00000) AM_DEVWRITE8("saa", saa1099_device, write, 0x00ff)
 	AM_RANGE(0x001ffd80, 0x001ffd81) AM_MIRROR(0x7fe00000) AM_READ(test_r)
 	AM_RANGE(0x001ffd80, 0x001ffd81) AM_MIRROR(0x7fe00000) AM_WRITENOP //?
@@ -695,7 +694,6 @@ static ADDRESS_MAP_START( hotslots_mem, AS_PROGRAM, 16, magicard_state )
 	AM_RANGE(0x00600000, 0x007ffbff) AM_RAM AM_SHARE("magicramb")
 	AM_RANGE(0x001ffc00, 0x001ffc01) AM_MIRROR(0x7fe00000) AM_READ(test_r)
 	AM_RANGE(0x001ffc40, 0x001ffc41) AM_MIRROR(0x7fe00000) AM_READ(test_r)
-	/*not the right sound chip,unknown type,it should be an ADPCM with 8 channels.*/
 	AM_RANGE(0x001ffd40, 0x001ffd43) AM_MIRROR(0x7fe00000) AM_DEVWRITE8("saa", saa1099_device, write, 0x00ff)
 	AM_RANGE(0x001ffd80, 0x001ffd81) AM_MIRROR(0x7fe00000) AM_READ(test_r)
 	AM_RANGE(0x001ffd80, 0x001ffd81) AM_MIRROR(0x7fe00000) AM_WRITENOP //?
diff --git a/src/mame/drivers/model2.cpp b/src/mame/drivers/model2.cpp
index 12ebdf1e987..2f927a1f435 100644
--- a/src/mame/drivers/model2.cpp
+++ b/src/mame/drivers/model2.cpp
@@ -13,7 +13,6 @@
     - all Model 2B games: FIFO comms looks way wrong, and 3d is mostly missing/incomplete. Games also tends to stalls at some point, culprit might be when i960 tries
       to use a burst type opcode read;
     - Inputs needs device-ification and clean-ups;
-    - Sound comms actually passes thru a 8251-compatible device, hook it up;
     - daytona: runs at half speed in gameplay;
     - desert: several 3d bugs, presumably down to FIFO;
     - dynamcop: stalls at stage select screen;