diff --git a/Sounds/mk-viii/100-above.wav b/Sounds/mk-viii/100-above.wav
new file mode 100644
index 000000000..f004d1f3c
Binary files /dev/null and b/Sounds/mk-viii/100-above.wav differ
diff --git a/Sounds/mk-viii/500-above.wav b/Sounds/mk-viii/500-above.wav
index a0b405400..9f18575c9 100644
Binary files a/Sounds/mk-viii/500-above.wav and b/Sounds/mk-viii/500-above.wav differ
diff --git a/Sounds/mk-viii/altitude-2500.wav b/Sounds/mk-viii/altitude-2500.wav
new file mode 100644
index 000000000..e327b9b8a
Binary files /dev/null and b/Sounds/mk-viii/altitude-2500.wav differ
diff --git a/Sounds/mk-viii/retard.wav b/Sounds/mk-viii/retard.wav
new file mode 100644
index 000000000..b16e76f73
Binary files /dev/null and b/Sounds/mk-viii/retard.wav differ