diff --git a/chd_from_zip.sh b/chd_from_zip.sh
index 4eae331..cd25926 100755
--- a/chd_from_zip.sh
+++ b/chd_from_zip.sh
@@ -1,13 +1,10 @@
 #!/bin/bash
 
-###place this script into root folder that contains .7z PSX archives
-###may need to chmod +x file to make executable
-
 ###uncomment below if required software not on system
 #sudo apt-get install -y mame-tools p7zip-full
 
-sourcedir="/home/sergio/nas_roms/SNK - Neo Geo CD (2016-01-08) (Redump)"
-destdir="//home/sergio/SNK - Neo Geo CD (2016-01-08) (Redump)"
+sourcedir="$1"
+destdir="$2"
 
 #extract zip
 for zipfile in "${sourcedir}"/*.zip; do
diff --git a/create_retroarch_thumbnails.sh b/create_retroarch_thumbnails.sh
index 9026d0d..3c22979 100755
--- a/create_retroarch_thumbnails.sh
+++ b/create_retroarch_thumbnails.sh
@@ -163,7 +163,7 @@ msx2)
     readonly PLAYLIST_NAME="Microsoft - MSX2"
     ;;
 n64)
-    readonly PLAYLIST_NAME=""
+    readonly PLAYLIST_NAME="Nintendo - Nintendo 64"
     ;;
 nds)
     readonly PLAYLIST_NAME="Nintendo - Nintendo DS"
diff --git a/skyscraper_system.sh b/skyscraper_system.sh
index bd21a7f..b560894 100755
--- a/skyscraper_system.sh
+++ b/skyscraper_system.sh
@@ -12,7 +12,7 @@ function help_message() {
     done
 }
 
-SYSTEMS="apple2 arcade atari2600 atari7800 atarilynx dreamcast coleco gamegear gb gba gbc mastersystem megadrive msx n64 nds nes ngpc pcengine psp saturn sega32x sg1000 snes vectrex virtualboy wonderswan wonderswancolor"
+SYSTEMS="apple2 arcade atari2600 atari7800 atarilynx dreamcast coleco gamegear gb gba gbc mastersystem megadrive msx n64 nds nes ngpc pcengine psp psx saturn sega32x sg-1000 snes vectrex virtualboy wonderswan wonderswancolor"
 
 # check if there are all the parameters
 if [ "$#" -ne 3 ]; then