diff --git a/app.py b/app.py
index f8efdc4..09bda63 100644
--- a/app.py
+++ b/app.py
@@ -159,8 +159,8 @@ def process_video():
         
         # Get quality (CRF value)
         quality = data.get('quality', 23)
-        # Ensure quality is within valid range (18-32)
-        quality = max(18, min(32, int(quality)))
+        # Ensure quality is within valid range (18-50)
+        quality = max(18, min(50, int(quality)))
         
         # Output settings for H.264 MP4
         cmd.extend([
diff --git a/templates/index.html b/templates/index.html
index d88ca6a..02506ba 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -596,16 +596,16 @@
                             <span>Quality: <span class="scale-value" id="quality-value-display">High</span></span>
                             <span style="color: #6c757d;">CRF: <strong id="crf-value-display">23</strong></span>
                         </div>
-                        <input type="range" class="scale-slider" id="quality-slider" min="16" max="50" value="23" step="1">
+                        <input type="range" class="scale-slider" id="quality-slider" min="18" max="50" value="23" step="1">
                         <div class="resolution-preview">
                             <p style="margin: 0;">💡 <strong>Lower CRF</strong> = Better quality, larger file. <strong>Higher CRF</strong> = More compressed, smaller file.</p>
                         </div>
                         <div class="preset-resolutions" style="margin-top: 15px;">
-                            <button class="preset-btn" data-quality="16">Lossless</button>
-                            <button class="preset-btn" data-quality="21">High</button>
+                            <button class="preset-btn" data-quality="18">Overkill</button>
+                            <button class="preset-btn" data-quality="21">Quality</button>
                             <button class="preset-btn" data-quality="23">Balanced</button>
-                            <button class="preset-btn" data-quality="26">Low</button>
-                            <button class="preset-btn" data-quality="30">Smallest File</button>
+                            <button class="preset-btn" data-quality="26">Compressed</button>
+                            <button class="preset-btn" data-quality="30">Small File</button>
                             <button class="preset-btn" data-quality="50">Dog 💩</button>
                         </div>
                     </div>