diff --git a/compress-music.sh b/compress-music.sh
index bfc872e..1f7a3f6 100755
--- a/compress-music.sh
+++ b/compress-music.sh
@@ -13,8 +13,11 @@ cd "$source"
 # create directory structure
 find . -type d -exec mkdir -p "$destination/{}" \;
 
+# copy existing mp3 files
+find . -type f -name '*.mp3' -exec cp --reflink=always "{}" "$destination/{}" \;
+
 # set +e because ffmpeg errors on .jpg, .txt, etc.
 # compress with opus
 set +e
-find . -type f -not -name '*.opus' | parallel --eta --progress 'ffmpeg -v 0 -n -i ""{}"" -c:a mp3 -b:a 320 -map_metadata 0 ""$destination/{.}.mp3""'
+find . -type f -not -name '*.mp3' | parallel --eta --progress 'ffmpeg -v 0 -n -i ""{}"" -c:a mp3 -b:a 320 -map_metadata 0 ""$destination/{.}.mp3""'
 #set -e