diff --git "a/Convert Script \342\200\223 README.md" "b/Convert Script \342\200\223 README.md"
index 8e062c1..6e0d798 100644
--- "a/Convert Script \342\200\223 README.md"	
+++ "b/Convert Script \342\200\223 README.md"	
@@ -68,7 +68,7 @@ and set some options in ``mpv/lua-settings/convert_script.conf`` or with ``--scr
     If you don’t want to upgrade your yad. Features like appending segments won’t be available. 
 
     libvpx_fps
-    Default: --oautofps
+    Default: ""
     FPS settings (or any other settings really) for libvpx encoding. Set it to --ofps=24000/1001 for example. 
 
-Warning: Some of these options aren’t very robust and setting them to bogus values will break the script. 
\ No newline at end of file
+Warning: Some of these options aren’t very robust and setting them to bogus values will break the script. 
diff --git a/convert_script.lua b/convert_script.lua
index 17d3100..90f88ec 100644
--- a/convert_script.lua
+++ b/convert_script.lua
@@ -3,6 +3,12 @@ local msg = require 'mp.msg'
 local opt = require 'mp.options'
 local utils = require 'mp.utils'
 
+-- executables
+local mkvpropedit_exe = "mkvpropedit"
+local mkvmerge_exe = "mkvmerge"
+local yad_exe = "yad"
+local notify_send_exe = "notify-send"
+
 -- default options, convert_script.conf is read
 local options = {
     bitrate_multiplier = 0.975,			-- to make sure the file won’t go over the target file size, set it to 1 if you don’t care
@@ -14,7 +20,7 @@ local options = {
     libvpx_options = "--ovcopts-add=cpu-used=0,auto-alt-ref=1,lag-in-frames=25,quality=good",
     libvpx_vp9_options = "",
     legacy_yad = false,				-- if you don’t want to upgrade to at least yad 0.18
-    libvpx_fps = "--oautofps",			-- --ofps=24000/1001 for example
+    libvpx_fps = "",			-- --ofps=24000/1001 for example
     audio_bitrate = 112,			-- mpv default, in kbps
 }
 
@@ -247,12 +253,12 @@ function encode(enc)
     if string.len(vf) > 0 then
         vf = vf .. ","
     end
-    local sub_file_table = mp.get_property_native("options/sub-file")
+    local sub_file_table = mp.get_property_native("options/sub-files")
     local sub_file = ""
     for index, param in pairs(sub_file_table) do
         sub_file = sub_file .. " --sub-file='" .. string.gsub(tostring(param), "'", "'\\''") .. "'"
     end
-    local audio_file_table = mp.get_property_native("options/audio-file")
+    local audio_file_table = mp.get_property_native("options/audio-files")
     local audio_file = ""
     for index, param in pairs(audio_file_table) do
         audio_file = audio_file .. " --audio-file='" .. string.gsub(tostring(param), "'", "'\\''") .. "'"
@@ -354,9 +360,9 @@ function encode(enc)
     if ovc == "gif" then
         full_command = full_command .. ' --vf-add=lavfi=graph=\\"framestep=' .. framestep .. '\\" && convert ' 
         .. tmpfolder .. '/*.png -set delay ' .. delay .. ' -loop 0 -fuzz ' .. fuzz .. '% ' .. dither .. ' -layers optimize '
-        .. full_output_path .. ' && rm -rf ' .. tmpfolder .. ' && notify-send "Gif done") & disown'
+        .. full_output_path .. ' && rm -rf ' .. tmpfolder .. ' && ' .. notify_send_exe .. ' "Gif done") & disown'
     else
-        full_command = full_command .. ' && notify-send "Encoding done"; mkvpropedit '
+        full_command = full_command .. ' && ' .. notify_send_exe .. ' "Encoding done"; ' .. mkvpropedit_exe .. ' '
         .. full_output_path .. ' -s title="' .. metadata_title .. '") & disown'
     end
     
@@ -409,7 +415,7 @@ function encode_copy(enc)
     sep = ",+"
     
     if enc then
-        local command = "mkvmerge '" .. video .. "' " .. mkvmerge_parts .. " -o " .. full_output_path
+        local command = mkvmerge_exe .. " '" .. video .. "' " .. mkvmerge_parts .. " -o " .. full_output_path
         msg.info(command)
         os.execute(command)
         clear()
@@ -508,7 +514,7 @@ function call_gui ()
     end
     
     
-    local yad_command = [[LC_NUMERIC=C yad --title="Convert Script" --center --form --fixed --always-print-result \
+    local yad_command = [[LC_NUMERIC=C ]] .. yad_exe .. [[ --title="Convert Script" --center --form --fixed --always-print-result \
     --name "convert script" --class "Convert Script" --field="Resize to height:NUM" "]] .. scale_sav		--yad_table 1
     .. [[" --field="Resize to width instead:CHK" ]] .. resize_to_width_instead .. " "				--yad_table 2
     if options.legacy_yad then
@@ -524,7 +530,7 @@ function call_gui ()
         yad_command = yad_command
         .. [[--field="2pass:CHK" "false" ]]									--yad_table 5
         .. [[--field="Encode options::CBE" '! --ovcopts=b=2000,cpu-used=0,auto-alt-ref=1,lag-in-frames=25,quality=good,threads=4' ]]	--yad_table 6
-        .. [[--field="Output format::CBE" ' --ovc=libx264! --oautofps --of=webm --ovc=libvpx' ]]		
+        .. [[--field="Output format::CBE" ' --ovc=libx264! --of=webm --ovc=libvpx' ]]
         .. [[--field="Simple:FBTN" 'bash -c "echo \"simple\" && kill -s SIGUSR1 \"$YAD_PID\""' ]]
         advanced = true
     else
@@ -734,4 +740,4 @@ mp.set_key_bindings({
 
 mp.add_key_binding("alt+w", "convert_script", convert_script_hotkey_call)
 
-mp.register_event("tick", tick)
\ No newline at end of file
+mp.register_event("tick", tick)