diff --git a/.vs/youtube-downloader/xs/UserPrefs.xml b/.vs/youtube-downloader/xs/UserPrefs.xml
index 65dc63e..36fbc28 100644
--- a/.vs/youtube-downloader/xs/UserPrefs.xml
+++ b/.vs/youtube-downloader/xs/UserPrefs.xml
@@ -7,7 +7,7 @@
       <File FileName="TYTD.Api/Server/Models/SavedVideo.cs" Line="8" Column="1" />
       <File FileName="TYTD.Api/Server/Models/InfomationQueueItem.cs" Line="280" Column="42" />
       <File FileName="TYTD.Api/Server/Functions/ffmpeg.cs" Line="5" Column="15" />
-      <File FileName="Program.cs" Line="122" Column="350" />
+      <File FileName="Program.cs" Line="122" Column="88" />
       <File FileName="TYTD.Api/MyClass.cs" Line="80" Column="14" />
       <File FileName="TYTD.Api/Server/Models/SavedChannel.cs" Line="6" Column="10" />
       <File FileName="TYTD.Api/Server/Models/SavedPlaylist.cs" Line="7" Column="1" />
diff --git a/Program.cs b/Program.cs
index 99cd211..b938d8d 100644
--- a/Program.cs
+++ b/Program.cs
@@ -264,7 +264,11 @@ namespace TYTD
             foreach (var item in Directory.GetFiles(Downloader.DL.GetPath(true, "Info"), "*.json"))
             {
                 string id =Path.GetFileNameWithoutExtension(item);
-                Downloader.DownloadVideo(id, Resolution.NoConvert);
+                if(!File.Exists(Path.Combine("NotConverted",$"{id}.mp4")))
+                {
+                    Downloader.DownloadVideo(id, Resolution.NoConvert);
+                }
+
             }
             rq.RedirectIt(rp);
 
@@ -272,10 +276,20 @@ namespace TYTD
 
         public static void RedownloadRes(HttpListenerRequest rq, HttpListenerResponse rp, Dictionary<string, string> args)
         {
+            int res=int.Parse(args["R"]);
+            if(res > 2)
+            {
+                rq.RedirectIt(rp);
+                return;
+            }
+            string res_str = new[]{"Converted","NotConverted","Audio"}[res];
             foreach (var item in Directory.GetFiles(Downloader.DL.GetPath(true, "Info"), "*.json"))
             {
-                string id = System.IO.Path.GetFileNameWithoutExtension(item);
-                Downloader.DownloadVideo(id, (Resolution)int.Parse(args["R"]));
+                string id = Path.GetFileNameWithoutExtension(item);
+                if (!File.Exists(Path.Combine(res_str, $"{id}.mp4")))
+                {
+                    Downloader.DownloadVideo(id, (Resolution)res);
+                }
             }
             rq.RedirectIt(rp);
 
diff --git a/TYTD.Api/obj/Release/TYTD.Api.csprojAssemblyReference.cache b/TYTD.Api/obj/Release/TYTD.Api.csprojAssemblyReference.cache
index 4aee228..63ac678 100644
Binary files a/TYTD.Api/obj/Release/TYTD.Api.csprojAssemblyReference.cache and b/TYTD.Api/obj/Release/TYTD.Api.csprojAssemblyReference.cache differ
diff --git a/bin/Release/youtube-downloader.exe b/bin/Release/youtube-downloader.exe
index ff7b008..c2eb7fe 100644
Binary files a/bin/Release/youtube-downloader.exe and b/bin/Release/youtube-downloader.exe differ
diff --git a/obj/x86/Release/youtube-downloader.csprojAssemblyReference.cache b/obj/x86/Release/youtube-downloader.csprojAssemblyReference.cache
index 2871d8b..a96666b 100644
Binary files a/obj/x86/Release/youtube-downloader.csprojAssemblyReference.cache and b/obj/x86/Release/youtube-downloader.csprojAssemblyReference.cache differ
diff --git a/obj/x86/Release/youtube-downloader.exe b/obj/x86/Release/youtube-downloader.exe
index ff7b008..c2eb7fe 100644
Binary files a/obj/x86/Release/youtube-downloader.exe and b/obj/x86/Release/youtube-downloader.exe differ