diff --git a/to_opus/to_opus.sh b/to_opus/to_opus.sh
index d0424e7..6e6117a 100755
--- a/to_opus/to_opus.sh
+++ b/to_opus/to_opus.sh
@@ -56,7 +56,10 @@ for file in **/*.@($extension); do
 	# use mkv for videos and for multiple audio streams
 	is_video=$(ffprobe -v error -select_streams V -show_entries stream=codec_type "$file")
 	if [[ ${#channels[@]} -gt 1 || -n "$is_video" ]]; then
-		ffmpeg -i "$file" -map 0 -map -0:d -map -0:t -c copy -c:a libopus $bitrate_settings-v info -hide_banner "${file%.*}.mkv" &&
+		if [[ ${file: -3} == "mkv" ]]; then 
+			file_out="${file%.*}2.mkv"
+		else file_out="${file%.*}.mkv"; fi
+		ffmpeg -i "$file" -map 0 -map -0:d -map -0:t -c copy -c:a libopus $bitrate_settings-v info -hide_banner "$file_out" &&
 		if [[ "$delete" = true ]]; then rm "$file"; fi
 	else
 		ffmpeg -i "$file" $bitrate_settings-v info -hide_banner "${file%.*}.opus" &&
diff --git a/to_vp9/to_vp9.sh b/to_vp9/to_vp9.sh
index 4819419..23b3e8c 100755
--- a/to_vp9/to_vp9.sh
+++ b/to_vp9/to_vp9.sh
@@ -61,13 +61,21 @@ extension="${extension[*]}"
 extension=${extension// /|}
 
 for file in **/*.@($extension); do
+	if [[ ${file: -3} == "mkv" ]]; then 
+		file_out="${file%.*}2.mkv"
+	else file_out="${file%.*}.mkv"; fi
+
+
+
 	echo "$encoder"
 
 	#VP9_vaapi
 	#there are problems with the -global_quality:v/-q:v settings only being able to make quality worse. Help is appreciated
 	#not enough tested. So it is still experimental
-	#ffmpeg -hide_banner -hwaccel vaapi -vaapi_device $gpu -i "$file" -map 0 -c copy -c:v vp9_vaapi -rc_mode CQP -bf 1 -bsf:v vp9_raw_reorder,vp9_superframe -vf 'hwupload' "${file%.*}.mkv"
-	
+	if [[ $encoder == "vp9_vaapi" ]]; then
+	ffmpeg -hide_banner -hwaccel vaapi -vaapi_device $gpu -i "$file" -map 0 -c copy -c:v vp9_vaapi -rc_mode CQP -bf 1 -bsf:v vp9_raw_reorder,vp9_superframe -vf 'hwupload' "$file_out"
+	fi
+
 	#VP9_qsv
 	#was not able to test it. So it is still experimental
 	#ffmpeg -hide_banner -hwaccel qsv -qsv_device $gpu -i "$file" -c:v av1_qsv -vf 'hwupload' "${file%.*}.mkv"