diff --git a/src/Samples/Downloader.Sample/Downloader.Sample.csproj b/src/Samples/Downloader.Sample/Downloader.Sample.csproj
index 2c40154..efe0837 100644
--- a/src/Samples/Downloader.Sample/Downloader.Sample.csproj
+++ b/src/Samples/Downloader.Sample/Downloader.Sample.csproj
@@ -21,7 +21,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <None Update="DownloadList.json">
+    <None Update="download.json">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
   </ItemGroup>
diff --git a/src/Samples/Downloader.Sample/Program.Config.cs b/src/Samples/Downloader.Sample/Program.Config.cs
index b378bab..bc2b6ad 100644
--- a/src/Samples/Downloader.Sample/Program.Config.cs
+++ b/src/Samples/Downloader.Sample/Program.Config.cs
@@ -13,7 +13,7 @@ private static DownloadConfiguration GetDownloadConfiguration()
         return new DownloadConfiguration {
             BufferBlockSize = 10240,    // usually, hosts support max to 8000 bytes, default values is 8000
             ChunkCount = 8,             // file parts to download, default value is 1
-            MaximumBytesPerSecond = 0,  // download speed limited to 10MB/s, default values is zero or unlimited
+            MaximumBytesPerSecond = 1024 * 1024 * 10,  // download speed limited to 10MB/s, default values is zero or unlimited
             MaxTryAgainOnFailover = 5,  // the maximum number of times to fail
             MaximumMemoryBufferBytes = 1024 * 1024 * 200, // release memory buffer after each 200MB
             ParallelDownload = true,    // download parts of file as parallel or not. Default value is false
@@ -24,7 +24,7 @@ private static DownloadConfiguration GetDownloadConfiguration()
             RangeHigh = 0,              // ceiling offset of download range of a large file
             ClearPackageOnCompletionWithFailure = true, // Clear package and downloaded data when download completed with failure, default value is false
             MinimumSizeOfChunking = 1024, // minimum size of chunking to download a file in multiple parts, default value is 512                                              
-            ReserveStorageSpaceBeforeStartingDownload = true, // Before starting the download, reserve the storage space of the file as file size, default value is false
+            ReserveStorageSpaceBeforeStartingDownload = false, // Before starting the download, reserve the storage space of the file as file size, default value is false
             RequestConfiguration =
             {
                 // config and customize request headers
diff --git a/src/Samples/Downloader.Sample/Program.cs b/src/Samples/Downloader.Sample/Program.cs
index 55de224..d4575e7 100644
--- a/src/Samples/Downloader.Sample/Program.cs
+++ b/src/Samples/Downloader.Sample/Program.cs
@@ -15,7 +15,7 @@ namespace Downloader.Sample;
 
 public partial class Program
 {
-    private const string DownloadListFile = "DownloadList.json";
+    private const string DownloadListFile = "download.json";
     private static List<DownloadItem> DownloadList;
     private static ProgressBar ConsoleProgress;
     private static ConcurrentDictionary<string, ChildProgressBar> ChildConsoleProgresses;
diff --git a/src/Samples/Downloader.Sample/DownloadList.json b/src/Samples/Downloader.Sample/download.json
similarity index 100%
rename from src/Samples/Downloader.Sample/DownloadList.json
rename to src/Samples/Downloader.Sample/download.json