diff --git a/src/mame/layout/README.md b/src/mame/layout/README.md
index 78ef2e5e6ad..003bd340b05 100644
--- a/src/mame/layout/README.md
+++ b/src/mame/layout/README.md
@@ -1,6 +1,6 @@
 # **Layout** #
 
-Layouts files are definiton files to describe look and fell of emulated machines, and are product
+Layouts files are definiton files to describe look and feel of emulated machines, and are the product
 of many different contributors.
 
 Licensed under [CC0 1.0 Universal (CC0 1.0)](https://creativecommons.org/publicdomain/zero/1.0/)
\ No newline at end of file
diff --git a/src/mame/layout/acrnsys1.lay b/src/mame/layout/acrnsys1.lay
index 84afbd9321e..63d0e132e90 100644
--- a/src/mame/layout/acrnsys1.lay
+++ b/src/mame/layout/acrnsys1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- acrnsys1.lay -->
 
 <!-- 2007-10-21: Initial version.  [Dirk Best] -->
diff --git a/src/mame/layout/aim65_40.lay b/src/mame/layout/aim65_40.lay
index 1d9aa5b0421..c0b90ebdfb3 100644
--- a/src/mame/layout/aim65_40.lay
+++ b/src/mame/layout/aim65_40.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Initial version.  [Dirk Best] -->
 <mamelayout version="2">
 
diff --git a/src/mame/layout/allied.lay b/src/mame/layout/allied.lay
index 38a80dd5dda..6c6f5860ed7 100644
--- a/src/mame/layout/allied.lay
+++ b/src/mame/layout/allied.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Allied copied from gp_1.lay -->
 
 <!-- 2014-08-12: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/amiga.lay b/src/mame/layout/amiga.lay
index 0cf7ff9d69d..85c2d672910 100644
--- a/src/mame/layout/amiga.lay
+++ b/src/mame/layout/amiga.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of drive LEDs for the Amiga Family -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/apollo.lay b/src/mame/layout/apollo.lay
index 06c90f31baf..e18a1cebec0 100644
--- a/src/mame/layout/apollo.lay
+++ b/src/mame/layout/apollo.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- 19" display for the Apollo DN3500 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/apollo_15i.lay b/src/mame/layout/apollo_15i.lay
index f42e8329954..74c6ca9ca02 100644
--- a/src/mame/layout/apollo_15i.lay
+++ b/src/mame/layout/apollo_15i.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- 15" display for the Apollo DN3500 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/apollo_dsp.lay b/src/mame/layout/apollo_dsp.lay
index 2ee7b0fced1..f3f5efe655a 100644
--- a/src/mame/layout/apollo_dsp.lay
+++ b/src/mame/layout/apollo_dsp.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- terminal display for the Apollo DSP3x00 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/armora.lay b/src/mame/layout/armora.lay
index f045b4a0736..850e087387d 100644
--- a/src/mame/layout/armora.lay
+++ b/src/mame/layout/armora.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="overlay">
 		<rect>
diff --git a/src/mame/layout/atari_s1.lay b/src/mame/layout/atari_s1.lay
index e0e714e6d84..3dcc9d9511f 100644
--- a/src/mame/layout/atari_s1.lay
+++ b/src/mame/layout/atari_s1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- atari_s1.lay -->
 
 <!-- 2012-10-07: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/atari_s2.lay b/src/mame/layout/atari_s2.lay
index 3d422e31523..568a82f02f6 100644
--- a/src/mame/layout/atari_s2.lay
+++ b/src/mame/layout/atari_s2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- atari_s2.lay -->
 
 <!-- 2012-10-10: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/bbc.lay b/src/mame/layout/bbc.lay
index 115992eff48..bd956a79a29 100644
--- a/src/mame/layout/bbc.lay
+++ b/src/mame/layout/bbc.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of keyboard LEDs for the BBC Micro series -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/by17.lay b/src/mame/layout/by17.lay
index b5b4cf178ce..acb247dfaa6 100644
--- a/src/mame/layout/by17.lay
+++ b/src/mame/layout/by17.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Pinball Machine, Bally ~ Template -17 MPU board -->
 
 <!-- 2014-07-26: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/by17_matahari.lay b/src/mame/layout/by17_matahari.lay
index 60cc5ab8d4f..6404fa1da90 100644
--- a/src/mame/layout/by17_matahari.lay
+++ b/src/mame/layout/by17_matahari.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Pinball Machine, Bally ~ Mata Hari -->
 <!-- [Quench] October 2015 -->
 
diff --git a/src/mame/layout/by17_pwerplay.lay b/src/mame/layout/by17_pwerplay.lay
index b8a77b925ad..0c23a3ca8f3 100644
--- a/src/mame/layout/by17_pwerplay.lay
+++ b/src/mame/layout/by17_pwerplay.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Pinball Machine, Bally ~ PowerPlay -->
 <!-- [Quench] September 2015 -->
 
diff --git a/src/mame/layout/by35.lay b/src/mame/layout/by35.lay
index 9a8a6398ab1..9d6b30a7bc8 100644
--- a/src/mame/layout/by35.lay
+++ b/src/mame/layout/by35.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Pinball Machine, Bally ~ Template -35 MPU board -->
 
 <!-- 2014-07-29: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/by35_playboy.lay b/src/mame/layout/by35_playboy.lay
index 51c544f2207..bc86fca347b 100644
--- a/src/mame/layout/by35_playboy.lay
+++ b/src/mame/layout/by35_playboy.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Pinball Machine, Bally ~ Playboy -->
 <!-- [Quench] June 2015 -->
 
diff --git a/src/mame/layout/cvicny.lay b/src/mame/layout/cvicny.lay
index 9e41a6d4300..755cd04bc4c 100644
--- a/src/mame/layout/cvicny.lay
+++ b/src/mame/layout/cvicny.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- cvicny.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/de2.lay b/src/mame/layout/de2.lay
index af96bb23935..2ca945e97d9 100644
--- a/src/mame/layout/de2.lay
+++ b/src/mame/layout/de2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- de2.lay -->
 
 <!-- 2013-03-16: Initial version.  [Barry Rodewald] -->
diff --git a/src/mame/layout/de2a3.lay b/src/mame/layout/de2a3.lay
index 96f1c4a7798..1a62b33f180 100644
--- a/src/mame/layout/de2a3.lay
+++ b/src/mame/layout/de2a3.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- de2a3.lay -->
 
 <!-- Data East Alphanumeric Display Type 3 -->
diff --git a/src/mame/layout/elecyoyo.lay b/src/mame/layout/elecyoyo.lay
index 82eb5e69771..2a19f98e374 100644
--- a/src/mame/layout/elecyoyo.lay
+++ b/src/mame/layout/elecyoyo.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="crop">
 		<rect>
diff --git a/src/mame/layout/esq1by22.lay b/src/mame/layout/esq1by22.lay
index 8667054f8eb..08d675ee9df 100644
--- a/src/mame/layout/esq1by22.lay
+++ b/src/mame/layout/esq1by22.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- esq1by24.lay -->
 <!-- 2012-05-27: Initial version.  [R. Belmont / VFDGen 0.1] -->
 
diff --git a/src/mame/layout/esq2by40.lay b/src/mame/layout/esq2by40.lay
index 26bba421d9f..2f9329389d4 100644
--- a/src/mame/layout/esq2by40.lay
+++ b/src/mame/layout/esq2by40.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- esq2by40.lay -->
 <!-- 2012-05-26: Initial version.  [R. Belmont / VFDGen 0.1] -->
 
diff --git a/src/mame/layout/fb01.lay b/src/mame/layout/fb01.lay
index 167eb183cd5..d51dd595e86 100644
--- a/src/mame/layout/fb01.lay
+++ b/src/mame/layout/fb01.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="system">
 		<text string="System">
diff --git a/src/mame/layout/fireball.lay b/src/mame/layout/fireball.lay
index 1a721c1fbad..60ec06fb10f 100644
--- a/src/mame/layout/fireball.lay
+++ b/src/mame/layout/fireball.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- fireball.lay -->
 
 <!-- 2014-01-15: Initial version.  -->
diff --git a/src/mame/layout/flicker.lay b/src/mame/layout/flicker.lay
index f2892cf2b64..e97f771cac4 100644
--- a/src/mame/layout/flicker.lay
+++ b/src/mame/layout/flicker.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- flicker.lay -->
 
 <!-- 2012-08-22: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/g627.lay b/src/mame/layout/g627.lay
index 480859d745c..32c47571404 100644
--- a/src/mame/layout/g627.lay
+++ b/src/mame/layout/g627.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- g627.lay -->
 
 <!-- 2012-09-11: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gamecom.lay b/src/mame/layout/gamecom.lay
index 0f5c290bf9d..3a9be5ed27b 100644
--- a/src/mame/layout/gamecom.lay
+++ b/src/mame/layout/gamecom.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- gamecom.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/gorf.lay b/src/mame/layout/gorf.lay
index 122b8980ea2..a68d8f0ae63 100644
--- a/src/mame/layout/gorf.lay
+++ b/src/mame/layout/gorf.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="white">
 		<rect>
diff --git a/src/mame/layout/gp_1.lay b/src/mame/layout/gp_1.lay
index 335e99696b8..db965305821 100644
--- a/src/mame/layout/gp_1.lay
+++ b/src/mame/layout/gp_1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Game Plan 1 copied from s6.lay -->
 
 <!-- 2014-07-22: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gp_2.lay b/src/mame/layout/gp_2.lay
index f4f06b56843..50cbd10c6a5 100644
--- a/src/mame/layout/gp_2.lay
+++ b/src/mame/layout/gp_2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Game Plan 2 copied from gp_1.lay -->
 
 <!-- 2014-07-24: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gts1.lay b/src/mame/layout/gts1.lay
index 1619bbf36a3..7e0e628c59c 100644
--- a/src/mame/layout/gts1.lay
+++ b/src/mame/layout/gts1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- gts1 copied from gts3.lay -->
 
 <!-- 2014-12-06: Initial version. -->
diff --git a/src/mame/layout/gts3.lay b/src/mame/layout/gts3.lay
index 3e2bbd93f6e..fffc904fb04 100644
--- a/src/mame/layout/gts3.lay
+++ b/src/mame/layout/gts3.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- gts3 copied from gts80b.lay -->
 
 <!-- 2014-10-18: Initial version. -->
diff --git a/src/mame/layout/gts80.lay b/src/mame/layout/gts80.lay
index 229a036cf9e..5515bdc88e9 100644
--- a/src/mame/layout/gts80.lay
+++ b/src/mame/layout/gts80.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- GTS80 copied from hankin.lay -->
 
 <!-- 2014-10-08: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gts80a.lay b/src/mame/layout/gts80a.lay
index f711716cfbe..04d025ff8bb 100644
--- a/src/mame/layout/gts80a.lay
+++ b/src/mame/layout/gts80a.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- GTS80A copied from gts80.lay -->
 
 <!-- 2014-10-10: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gts80a_caveman.lay b/src/mame/layout/gts80a_caveman.lay
index 60c680b7b6e..86c87e03f03 100644
--- a/src/mame/layout/gts80a_caveman.lay
+++ b/src/mame/layout/gts80a_caveman.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- GTS80A copied from gts80.lay -->
 
 <!-- 2014-10-10: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/gts80b.lay b/src/mame/layout/gts80b.lay
index 9e72d60c894..669f362d03b 100644
--- a/src/mame/layout/gts80b.lay
+++ b/src/mame/layout/gts80b.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- gts80b copied from wpc_an.lay -->
 
 <!-- 2014-10-17: Initial version. -->
diff --git a/src/mame/layout/hankin.lay b/src/mame/layout/hankin.lay
index 8fa9b59a55e..0f15e650f92 100644
--- a/src/mame/layout/hankin.lay
+++ b/src/mame/layout/hankin.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Hankin copied from gp_1.lay -->
 
 <!-- 2014-08-14: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/ie15.lay b/src/mame/layout/ie15.lay
index 18b364dbdb5..38b829ba317 100644
--- a/src/mame/layout/ie15.lay
+++ b/src/mame/layout/ie15.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 
 	<element name="e_led">
diff --git a/src/mame/layout/inder.lay b/src/mame/layout/inder.lay
index 510a5e26a7a..0b3b6e0a207 100644
--- a/src/mame/layout/inder.lay
+++ b/src/mame/layout/inder.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Inder copied from jeutel.lay -->
 
 <!-- 2014-09-03: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/instruct.lay b/src/mame/layout/instruct.lay
index 302697dec84..f46623cea29 100644
--- a/src/mame/layout/instruct.lay
+++ b/src/mame/layout/instruct.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- instruct.lay -->
 
 <!-- 2012-05-20: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/jeutel.lay b/src/mame/layout/jeutel.lay
index 761bc82c429..6b032d42f82 100644
--- a/src/mame/layout/jeutel.lay
+++ b/src/mame/layout/jeutel.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Jeutel copied from hankin.lay -->
 
 <!-- 2014-08-20: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/jp.lay b/src/mame/layout/jp.lay
index f13af04d49d..79653f113e1 100644
--- a/src/mame/layout/jp.lay
+++ b/src/mame/layout/jp.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Juegos Populares copied from inder.lay -->
 
 <!-- 2014-09-09: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/llc1.lay b/src/mame/layout/llc1.lay
index 3bd3a42669b..b574cb4dd23 100644
--- a/src/mame/layout/llc1.lay
+++ b/src/mame/layout/llc1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- llc1.lay -->
 
 <!-- 2012-07-27: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/ltd.lay b/src/mame/layout/ltd.lay
index 0aa2444c5ec..064d9e7cbad 100644
--- a/src/mame/layout/ltd.lay
+++ b/src/mame/layout/ltd.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- LTD copied from st_mp200.lay -->
 
 <!-- 2014-08-18: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/megacd.lay b/src/mame/layout/megacd.lay
index f50e797fd92..3d0a4c3eed3 100644
--- a/src/mame/layout/megacd.lay
+++ b/src/mame/layout/megacd.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of CD-ROM drive LEDs for the Sega MegaCD -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/mgavegas.lay b/src/mame/layout/mgavegas.lay
index 997c39c9a2f..70bb2415e87 100644
--- a/src/mame/layout/mgavegas.lay
+++ b/src/mame/layout/mgavegas.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- fireball.lay -->
 
 <!-- 2014-01-15: Initial version.  -->
diff --git a/src/mame/layout/micropin.lay b/src/mame/layout/micropin.lay
index 1b57b78c771..c871dd36aef 100644
--- a/src/mame/layout/micropin.lay
+++ b/src/mame/layout/micropin.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- micropin.lay -->
 
 <!-- 2014-09-24: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/mirage.lay b/src/mame/layout/mirage.lay
index 58d6102dee0..c15913a8c09 100644
--- a/src/mame/layout/mirage.lay
+++ b/src/mame/layout/mirage.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- mirage.lay -->
 <!-- 2012-12-01: Initial version.  [R. Belmont] -->
 
diff --git a/src/mame/layout/mmd1.lay b/src/mame/layout/mmd1.lay
index 7fd972e0527..ccf2b6395d6 100644
--- a/src/mame/layout/mmd1.lay
+++ b/src/mame/layout/mmd1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of LEDs for the MMD-1 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/mmd2.lay b/src/mame/layout/mmd2.lay
index 1a96ab7af0b..98e34109865 100644
--- a/src/mame/layout/mmd2.lay
+++ b/src/mame/layout/mmd2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of LEDs for the MMD-2 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/nsm.lay b/src/mame/layout/nsm.lay
index 7f9721d7179..560ed7b628f 100644
--- a/src/mame/layout/nsm.lay
+++ b/src/mame/layout/nsm.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- nsm.lay -->
 
 <!-- 2012-10-04: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/pe_bjack.lay b/src/mame/layout/pe_bjack.lay
index f25071b5541..1e6cabeefd3 100644
--- a/src/mame/layout/pe_bjack.lay
+++ b/src/mame/layout/pe_bjack.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pe_bjack.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/pe_keno.lay b/src/mame/layout/pe_keno.lay
index 7da64db4b0f..1c61ec5969b 100644
--- a/src/mame/layout/pe_keno.lay
+++ b/src/mame/layout/pe_keno.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pe_keno.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/pe_poker.lay b/src/mame/layout/pe_poker.lay
index e22b3a93908..727906af8ba 100644
--- a/src/mame/layout/pe_poker.lay
+++ b/src/mame/layout/pe_poker.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pe_poker.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/pe_schip.lay b/src/mame/layout/pe_schip.lay
index 96654cedacf..08231283726 100644
--- a/src/mame/layout/pe_schip.lay
+++ b/src/mame/layout/pe_schip.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pe_schip.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/pe_slots.lay b/src/mame/layout/pe_slots.lay
index 47a1d009a42..37732f7290d 100644
--- a/src/mame/layout/pe_slots.lay
+++ b/src/mame/layout/pe_slots.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pe_slots.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/peplus.lay b/src/mame/layout/peplus.lay
index 7a51a81c540..79d08c5383d 100644
--- a/src/mame/layout/peplus.lay
+++ b/src/mame/layout/peplus.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- peplus.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/play_1.lay b/src/mame/layout/play_1.lay
index 3c3d57fcd0d..bc810321205 100644
--- a/src/mame/layout/play_1.lay
+++ b/src/mame/layout/play_1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- play_1.lay -->
 
 <!-- 2016-08-13: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/play_2.lay b/src/mame/layout/play_2.lay
index 034ac3230df..f03a7cfc9bf 100644
--- a/src/mame/layout/play_2.lay
+++ b/src/mame/layout/play_2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- play_2.lay -->
 
 <!-- 2016-08-12: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/play_3.lay b/src/mame/layout/play_3.lay
index 951cd87ba48..764f2c3e012 100644
--- a/src/mame/layout/play_3.lay
+++ b/src/mame/layout/play_3.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- play_3.lay -->
 
 <!-- 2016-08-12: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/pmi80.lay b/src/mame/layout/pmi80.lay
index adae4854f32..e9ca6e55b7f 100644
--- a/src/mame/layout/pmi80.lay
+++ b/src/mame/layout/pmi80.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- pmi80.lay -->
 
 <!-- 2011-06-20: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/prophet600.lay b/src/mame/layout/prophet600.lay
index e89e62e86fc..ae4494b7785 100644
--- a/src/mame/layout/prophet600.lay
+++ b/src/mame/layout/prophet600.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- mirage.lay -->
 <!-- 2016-01-09: Initial version.  [R. Belmont] -->
 
diff --git a/src/mame/layout/rainbow.lay b/src/mame/layout/rainbow.lay
index bb72bbf21ec..f0b804bda26 100644
--- a/src/mame/layout/rainbow.lay
+++ b/src/mame/layout/rainbow.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="driveled" defstate="0">
 		<disk state="1">
diff --git a/src/mame/layout/rowamet.lay b/src/mame/layout/rowamet.lay
index dac11c9f698..bfb3f1c9f09 100644
--- a/src/mame/layout/rowamet.lay
+++ b/src/mame/layout/rowamet.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- rowamet.lay -->
 
 <!-- 2012-09-14: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s11.lay b/src/mame/layout/s11.lay
index 3e629fe913e..2960c613ae9 100644
--- a/src/mame/layout/s11.lay
+++ b/src/mame/layout/s11.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s11.lay -->
 
 <!-- 2012-11-04: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s11a.lay b/src/mame/layout/s11a.lay
index 973a73b049a..99d60aadc20 100644
--- a/src/mame/layout/s11a.lay
+++ b/src/mame/layout/s11a.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s11a.lay -->
 
 <!-- 2012-11-04: Initial version.  [Robbbert]
diff --git a/src/mame/layout/s11b.lay b/src/mame/layout/s11b.lay
index ba01ff83ec4..606b6843f79 100644
--- a/src/mame/layout/s11b.lay
+++ b/src/mame/layout/s11b.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s11b.lay -->
 
 <!-- 2012-12-21: Initial version. -->
diff --git a/src/mame/layout/s11c.lay b/src/mame/layout/s11c.lay
index c4c7cd66227..1f6744a090f 100644
--- a/src/mame/layout/s11c.lay
+++ b/src/mame/layout/s11c.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s11c.lay -->
 
 <!-- 2013-01-03: Initial version. -->
diff --git a/src/mame/layout/s3.lay b/src/mame/layout/s3.lay
index 1b3be694d1f..5a4e032bbf6 100644
--- a/src/mame/layout/s3.lay
+++ b/src/mame/layout/s3.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s3.lay -->
 
 <!-- 2012-10-21: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s4.lay b/src/mame/layout/s4.lay
index e4906b8baa0..3675411d5dc 100644
--- a/src/mame/layout/s4.lay
+++ b/src/mame/layout/s4.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s4.lay -->
 
 <!-- 2012-10-23: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s6.lay b/src/mame/layout/s6.lay
index 74488e71160..d79db688f07 100644
--- a/src/mame/layout/s6.lay
+++ b/src/mame/layout/s6.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s6.lay -->
 
 <!-- 2012-10-24: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s6a.lay b/src/mame/layout/s6a.lay
index 56ab2cef537..832cd1c099a 100644
--- a/src/mame/layout/s6a.lay
+++ b/src/mame/layout/s6a.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s6a.lay -->
 
 <!-- 2012-10-24: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s7.lay b/src/mame/layout/s7.lay
index d7305bd060e..4b5a48ebe43 100644
--- a/src/mame/layout/s7.lay
+++ b/src/mame/layout/s7.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s7.lay -->
 
 <!-- 2012-10-30: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s8.lay b/src/mame/layout/s8.lay
index 56ee5892c4d..f449de1ca25 100644
--- a/src/mame/layout/s8.lay
+++ b/src/mame/layout/s8.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s8.lay -->
 
 <!-- 2012-10-26: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s8a.lay b/src/mame/layout/s8a.lay
index af18a7bc087..b865118d1ba 100644
--- a/src/mame/layout/s8a.lay
+++ b/src/mame/layout/s8a.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s8.lay -->
 
 <!-- 2012-10-26: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/s9.lay b/src/mame/layout/s9.lay
index 2c4b73afbf2..2fb1f93aa02 100644
--- a/src/mame/layout/s9.lay
+++ b/src/mame/layout/s9.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- s9.lay -->
 
 <!-- 2012-10-24: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/sdk86.lay b/src/mame/layout/sdk86.lay
index 9f77b7200be..8f6e757af1e 100644
--- a/src/mame/layout/sdk86.lay
+++ b/src/mame/layout/sdk86.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- sdk86.lay -->
 
 <!-- 2011-06-23: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/sitcom.lay b/src/mame/layout/sitcom.lay
index fce04d7716e..3428006705e 100644
--- a/src/mame/layout/sitcom.lay
+++ b/src/mame/layout/sitcom.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of LEDs for the SITCOM85 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/spectra.lay b/src/mame/layout/spectra.lay
index 9b156a46827..be38fde90f1 100644
--- a/src/mame/layout/spectra.lay
+++ b/src/mame/layout/spectra.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- spectra.lay -->
 
 <!-- 2012-09-26: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/splus.lay b/src/mame/layout/splus.lay
index d340d81df45..5546c17547d 100644
--- a/src/mame/layout/splus.lay
+++ b/src/mame/layout/splus.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- splus.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/st_mp100.lay b/src/mame/layout/st_mp100.lay
index 79386af4277..46b5755f029 100644
--- a/src/mame/layout/st_mp100.lay
+++ b/src/mame/layout/st_mp100.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- ST_MP100 copied from by17.lay -->
 
 <!-- 2014-08-03: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/st_mp200.lay b/src/mame/layout/st_mp200.lay
index 2aeb138fec4..3f110a9d1ed 100644
--- a/src/mame/layout/st_mp200.lay
+++ b/src/mame/layout/st_mp200.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- ST_MP200 copied from by35.lay -->
 
 <!-- 2014-08-04: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/stactics.lay b/src/mame/layout/stactics.lay
index 198832a1a54..6f0fb83b042 100644
--- a/src/mame/layout/stactics.lay
+++ b/src/mame/layout/stactics.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="divider">
 		<rect>
diff --git a/src/mame/layout/super80.lay b/src/mame/layout/super80.lay
index 49bedebeb77..eb3e06ddfa7 100644
--- a/src/mame/layout/super80.lay
+++ b/src/mame/layout/super80.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 
 	<element name="red_led">
diff --git a/src/mame/layout/sym1.lay b/src/mame/layout/sym1.lay
index ad90e2a3ec5..81efe09e813 100644
--- a/src/mame/layout/sym1.lay
+++ b/src/mame/layout/sym1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- sym1.lay -->
 
 <!-- 2007-10-21: Initial version.  [Dirk Best] -->
diff --git a/src/mame/layout/taito.lay b/src/mame/layout/taito.lay
index 985ca4028ff..aeed999b183 100644
--- a/src/mame/layout/taito.lay
+++ b/src/mame/layout/taito.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- TAITO copied from rowamet.lay -->
 
 <!-- 2014-08-23: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/techno.lay b/src/mame/layout/techno.lay
index 7fe25763fd2..eba8d809fcc 100644
--- a/src/mame/layout/techno.lay
+++ b/src/mame/layout/techno.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- techno.lay -->
 
 <!-- 2012-09-08: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/tk80.lay b/src/mame/layout/tk80.lay
index f0ee0850a4e..c5e268f396b 100644
--- a/src/mame/layout/tk80.lay
+++ b/src/mame/layout/tk80.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- tk80.lay -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/vd.lay b/src/mame/layout/vd.lay
index 7e2797aef7a..74e67c24439 100644
--- a/src/mame/layout/vd.lay
+++ b/src/mame/layout/vd.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- vd.lay -->
 
 <!-- 2012-10-14: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/videopin.lay b/src/mame/layout/videopin.lay
index c1ce049ccb9..556ac2c2561 100644
--- a/src/mame/layout/videopin.lay
+++ b/src/mame/layout/videopin.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <mamelayout version="2">
 	<element name="lamp" defstate="0">
 		<disk state="1">
diff --git a/src/mame/layout/vk100.lay b/src/mame/layout/vk100.lay
index cae8f0329ec..c28406ca640 100644
--- a/src/mame/layout/vk100.lay
+++ b/src/mame/layout/vk100.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of LEDs for the DEC VK100, based on VT100 layout -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/vt100.lay b/src/mame/layout/vt100.lay
index 7c54f6fd007..163e49872f3 100644
--- a/src/mame/layout/vt100.lay
+++ b/src/mame/layout/vt100.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of LEDs for the DEC VT100 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/wicat.lay b/src/mame/layout/wicat.lay
index 9d97532ecf0..891b884b79d 100644
--- a/src/mame/layout/wicat.lay
+++ b/src/mame/layout/wicat.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- LED layout for Wicat WS-150 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/wico.lay b/src/mame/layout/wico.lay
index fef593d7a42..bc07fd523a8 100644
--- a/src/mame/layout/wico.lay
+++ b/src/mame/layout/wico.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- wico.lay -->
 
 <!-- 2012-10-02: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/wpc_an.lay b/src/mame/layout/wpc_an.lay
index 4e70030740a..9c9a3ee8154 100644
--- a/src/mame/layout/wpc_an.lay
+++ b/src/mame/layout/wpc_an.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- wpc_an.lay -->
 
 <!-- 2013-10-01: Initial version. -->
diff --git a/src/mame/layout/x68000.lay b/src/mame/layout/x68000.lay
index ef1ae5cea89..0e868b0b2ca 100644
--- a/src/mame/layout/x68000.lay
+++ b/src/mame/layout/x68000.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- Basic display of disk drive LEDs for the Sharp X680x0 -->
 
 <mamelayout version="2">
diff --git a/src/mame/layout/zac_1.lay b/src/mame/layout/zac_1.lay
index 2510007f92b..b893fec79ea 100644
--- a/src/mame/layout/zac_1.lay
+++ b/src/mame/layout/zac_1.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- zac_1.lay -->
 
 <!-- 2012-08-28: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/zac_2.lay b/src/mame/layout/zac_2.lay
index 6fe7c035c93..30032e24417 100644
--- a/src/mame/layout/zac_2.lay
+++ b/src/mame/layout/zac_2.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- zac_2.lay -->
 
 <!-- 2012-08-29: Initial version.  [Robbbert] -->
diff --git a/src/mame/layout/zac_proto.lay b/src/mame/layout/zac_proto.lay
index 6fa0b79243d..5108735572c 100644
--- a/src/mame/layout/zac_proto.lay
+++ b/src/mame/layout/zac_proto.lay
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <!-- zac_proto.lay -->
 
 <!-- 2012-08-25: Initial version.  [Robbbert] -->