diff --git a/app/Console/Commands/UpdateVideoSize.php b/app/Console/Commands/UpdateVideoSize.php
new file mode 100644
index 0000000..d168c50
--- /dev/null
+++ b/app/Console/Commands/UpdateVideoSize.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Jobs\DownloadVideoFile;
+use App\Jobs\GetVideoFileSize;
+use App\Models\Chapter;
+use Illuminate\Console\Command;
+
+class UpdateVideoSize extends Command
+{
+    protected $signature = 'symfonycast:video_size';
+
+    protected $description = 'Updates information about video size';
+
+    public function handle()
+    {
+        $chapters = Chapter::where('video_size', 0)->get();
+        $chapters->each(fn($chapter) => GetVideoFileSize::dispatch($chapter->id));
+        return self::SUCCESS;
+    }
+}
diff --git a/app/Http/Controllers/Index.php b/app/Http/Controllers/Index.php
index 1d35e7d..f25dc8b 100644
--- a/app/Http/Controllers/Index.php
+++ b/app/Http/Controllers/Index.php
@@ -13,7 +13,6 @@ class Index extends Controller
     {
         $courses = Course::with('chapters')->withCount('chapters')->get();
 
-//        dd($courses->toArray());
         return view('index', compact(['courses']));
     }
 
diff --git a/app/Http/SymfonyCastDl/SymfonyCastDlService.php b/app/Http/SymfonyCastDl/SymfonyCastDlService.php
index 34ccaec..2ca419a 100644
--- a/app/Http/SymfonyCastDl/SymfonyCastDlService.php
+++ b/app/Http/SymfonyCastDl/SymfonyCastDlService.php
@@ -35,7 +35,7 @@ class SymfonyCastDlService
         ]);
     }
 
-    public function getInfo()
+    public function getInfo(): void
     {
         $coursePage = $this->client->get('courses/filtering');
 
@@ -64,8 +64,11 @@ class SymfonyCastDlService
 
     public function downloadFile(Chapter $chapter): void
     {
-        if (!is_dir(public_path($chapter->directory_path))) {
-            mkdir(public_path($chapter->directory_path));
+        if (is_null($chapter->video_link)) {
+            return;
+        }
+        if (!is_dir($chapter->directory_path)) {
+            mkdir($chapter->directory_path);
         }
         if (!$chapter->is_video_file) {
             $this->client->request(
diff --git a/app/Models/Chapter.php b/app/Models/Chapter.php
index 7434594..341b9ff 100644
--- a/app/Models/Chapter.php
+++ b/app/Models/Chapter.php
@@ -46,14 +46,14 @@ class Chapter extends Model
     protected function videoPath(): Attribute
     {
         return Attribute::make(
-            get: fn() => $this->directory_path . '/' . $this->id . '.' . $this->link . '.mp4'
+            get: fn() => $this->directory_path . '/' . $this->order . '.mp4'
         );
     }
 
     protected function directoryPath(): Attribute
     {
         return Attribute::make(
-            get: fn() => $this->course_id . '.' . $this->course->link
+            get: fn() => public_path($this->course_id)
         );
     }
 
@@ -63,4 +63,16 @@ class Chapter extends Model
             get: fn() => is_file($this->video_path)
         );
     }
+
+    public function videoSizeHuman(): Attribute
+    {
+        return Attribute::make(
+            get: function () {
+                $base = log($this->video_size) / log(1024);
+                $suffix = ["", "k", "M", "G", "T"][floor($base)];
+                return round(pow(1024, $base - floor($base)), 2) . $suffix;
+            },
+        );
+    }
+
 }
diff --git a/resources/views/course/index.blade.php b/resources/views/course/index.blade.php
index f104013..8c28e89 100644
--- a/resources/views/course/index.blade.php
+++ b/resources/views/course/index.blade.php
@@ -1,6 +1,6 @@
 <x-layout>
     <h1>
-        {{ $course->name }}
+        <a href="/">List</a> &raquo; {{ $course->name }}
     </h1>
 
     <a href="{{ route('course.sync', ['course' => $course->id]) }}">Sync all chapters offline</a>
@@ -10,6 +10,8 @@
             <th>Title</th>
             <th>Duration</th>
             <th>Sync offline</th>
+            <th>Synced offline</th>
+            <th>File size</th>
         </tr>
         </thead>
         @foreach($course->chapters()->get() as $chapter)
@@ -18,12 +20,14 @@
                 <td>{{ $chapter->duration }}</td>
                 <td>{{ $chapter->sync_offline?'Yes':'no' }}</td>
                 <td>{{ $chapter->is_video_file?'Yes':'-' }}</td>
+                <td>{{ $chapter->video_size_human }}</td>
             </tr>
         @endforeach
         <tr>
             <td></td>
             <td>Total: {{ $course->course_duration }}</td>
             <td></td>
+            <td></td>
             <td>Size: {{ $course->total_size_human }}</td>
         </tr>
     </table>