diff --git a/new.php b/new.php
index 13abc59..d928d94 100644
--- a/new.php
+++ b/new.php
@@ -138,7 +138,7 @@ function unique_input_dir($base, $slug){
 function input_dir_signature($dir){
     $entries = [];
     foreach (scandir($dir) ?: [] as $file) {
-        if ($file === '.' || $file === '..' || in_array($file, ['.movmaker-state.json','.movmaker-enabled','.mvlog-hidden'], true)) continue;
+        if ($file === '.' || $file === '..' || in_array($file, ['.movmaker-state.json','.movmaker-enabled','.movmaker-preview','.mvlog-hidden'], true)) continue;
         if ($file === '.movmaker-lock') continue;
         $path = $dir . '/' . $file;
         if (is_file($path)) $entries[] = [$file, filesize($path), filemtime($path)];
@@ -217,16 +217,26 @@ function set_input_dir_enabled($dir, $enabled){
     if ($enabled) { file_put_contents($path, "enabled\n"); chmod($path, 0664); }
     elseif (is_file($path)) unlink($path);
 }
+function input_dir_preview($dir){ return is_file($dir . '/.movmaker-preview'); }
+function set_input_dir_preview($dir, $preview){
+    $path = $dir . '/.movmaker-preview';
+    if ($preview) { file_put_contents($path, "preview\n"); chmod($path, 0664); }
+    elseif (is_file($path)) unlink($path);
+}
 function input_dir_visible($dir){ return !is_file($dir . '/.mvlog-hidden'); }
 function set_input_dir_visible($dir, $visible){
     $path = $dir . '/.mvlog-hidden';
     if ($visible) { if (is_file($path)) unlink($path); }
     else { file_put_contents($path, "hidden\n"); chmod($path, 0664); }
 }
-function input_dir_output($dir){
+function input_dir_state($dir){
     $stateFile = $dir . '/.movmaker-state.json';
     $state = is_file($stateFile) ? json_decode((string)file_get_contents($stateFile), true) : [];
-    return is_array($state) ? basename((string)($state['output'] ?? '')) : '';
+    return is_array($state) ? $state : [];
+}
+function input_dir_output($dir){
+    $state = input_dir_state($dir);
+    return basename((string)($state['output'] ?? ''));
 }
 function cached_video_metadata($output, $fallback){
     $meta = ['title'=>$fallback['title'] ?? '', 'date'=>$fallback['date'] ?? '', 'location'=>$fallback['place'] ?? '', 'description'=>$fallback['description'] ?? ''];
@@ -293,6 +303,7 @@ try {
             chmod($dir, 02775);
             write_data($dir, $_POST);
             set_input_dir_enabled($dir, false);
+            set_input_dir_preview($dir, false);
             set_input_dir_visible($dir, false);
             $msg = "Created movmaker input directory: in-dir/$slug";
             $_GET['edit'] = $slug;
@@ -300,14 +311,34 @@ try {
             $dir = safe_input_dir($config['uploads_dir'], $_POST['dir'] ?? '');
             $enabledNow = !empty($_POST['enabled']);
             set_input_dir_enabled($dir, $enabledNow);
-            if (!empty($_POST['ajax'])) ajax_json(['ok'=>true, 'enabled'=>$enabledNow, 'dir'=>basename($dir)]);
+            if ($enabledNow) set_input_dir_preview($dir, false);
+            $state = input_dir_state($dir);
+            $output = basename((string)($state['output'] ?? ''));
+            $canShow = $output !== '' && is_file($config['videos_dir'].'/'.$output) && !input_dir_preview($dir);
+            if (!$canShow) set_input_dir_visible($dir, false);
+            if (!empty($_POST['ajax'])) ajax_json(['ok'=>true, 'enabled'=>$enabledNow, 'preview'=>input_dir_preview($dir), 'visible'=>input_dir_visible($dir) && $canShow, 'can_show'=>$canShow, 'dir'=>basename($dir)]);
             header('Location: new.php?tab=edit&msg=' . rawurlencode(($enabledNow ? 'Enabled rendering for: in-dir/' : 'Disabled rendering for: in-dir/') . basename($dir)));
             exit;
+        } elseif ($action === 'set_preview') {
+            $dir = safe_input_dir($config['uploads_dir'], $_POST['dir'] ?? '');
+            $previewNow = !empty($_POST['preview']);
+            set_input_dir_preview($dir, $previewNow);
+            if ($previewNow) { set_input_dir_enabled($dir, false); set_input_dir_visible($dir, false); }
+            $state = input_dir_state($dir);
+            $output = basename((string)($state['output'] ?? ''));
+            $canShow = $output !== '' && is_file($config['videos_dir'].'/'.$output) && !input_dir_preview($dir);
+            if (!empty($_POST['ajax'])) ajax_json(['ok'=>true, 'preview'=>$previewNow, 'enabled'=>input_dir_enabled($dir), 'visible'=>input_dir_visible($dir) && $canShow, 'can_show'=>$canShow, 'dir'=>basename($dir)]);
+            header('Location: new.php?tab=edit&msg=' . rawurlencode(($previewNow ? 'Enabled preview for: in-dir/' : 'Disabled preview for: in-dir/') . basename($dir)));
+            exit;
         } elseif ($action === 'set_visible') {
             $dir = safe_input_dir($config['uploads_dir'], $_POST['dir'] ?? '');
             $visibleNow = !empty($_POST['visible']);
-            set_input_dir_visible($dir, $visibleNow);
-            if (!empty($_POST['ajax'])) ajax_json(['ok'=>true, 'visible'=>$visibleNow, 'dir'=>basename($dir)]);
+            $state = input_dir_state($dir);
+            $output = basename((string)($state['output'] ?? ''));
+            $canShow = $output !== '' && is_file($config['videos_dir'].'/'.$output) && !input_dir_preview($dir);
+            if ($visibleNow && !$canShow) throw new RuntimeException('Only finished full-quality videos can be shown.');
+            set_input_dir_visible($dir, $visibleNow && $canShow);
+            if (!empty($_POST['ajax'])) ajax_json(['ok'=>true, 'visible'=>input_dir_visible($dir) && $canShow, 'can_show'=>$canShow, 'dir'=>basename($dir)]);
             header('Location: new.php?tab=edit&msg=' . rawurlencode(($visibleNow ? 'Shown: in-dir/' : 'Hidden: in-dir/') . basename($dir)));
             exit;
         } elseif ($action === 'update') {
@@ -376,7 +407,7 @@ if ($editName !== '') { try { $editDir = safe_input_dir($config['uploads_dir'],
 <?php if($msg): ?><div class="ok"><?=h($msg)?></div><?php endif; ?><?php if($err): ?><div class="err"><?=h($err)?></div><?php endif; ?>
 
 <?php if($tab==='videos'): ?><section><h2>Videos without input dir</h2><?php if(!$orphanVideos): ?><p>No orphan videos.</p><?php endif; ?><div class="admin-list"><?php foreach($orphanVideosPage as $v): $vn=basename($v); ?><form method="post" class="admin-item" onsubmit="return confirm('Delete this generated video?')"><div><strong><?=h($vn)?></strong><br><span><?=h(round(filesize($v)/1048576,1))?> MB</span></div><input type="hidden" name="action" value="delete_video"><input type="hidden" name="video" value="<?=h($vn)?>"><button type="submit">Delete video</button></form><?php endforeach; ?></div><?=page_links('videos',$videoPage,$videoPages)?></section><?php endif; ?>
-<?php if($tab==='edit'): ?><section><h2>Existing input dirs</h2><?php if(!$dirs): ?><p>No input directories yet.</p><?php endif; ?><div class="admin-list video-list"><?php foreach($dirsPage as $d): $runStatus=input_dir_status($d); $running=input_dir_running($d); $enabled=input_dir_enabled($d); $visible=input_dir_visible($d); $info=$dirInfo[basename($d)] ?? input_dir_info($d); $data=read_data($d); $output=input_dir_output($d); $hasVideo=$output !== '' && is_file($config['videos_dir'].'/'.$output); $meta=cached_video_metadata($output, $data); ?><article class="video-row admin-video-row"><div><?php if($hasVideo): ?><video controls controlsList="nodownload" oncontextmenu="return false" preload="metadata" src="<?=h($config['public_videos'].'/'.rawurlencode($output))?>"></video><?php else: ?><div class="video-placeholder"><img src="assets/img/moto_travel.png" alt=""><span>No video yet</span></div><?php endif; ?></div><div class="video-info"><div class="admin-row-top"><div class="admin-switches"><form method="post" class="inline-form"><input type="hidden" name="action" value="set_visible"><input type="hidden" name="dir" value="<?=h(basename($d))?>"><label class="switch-label"><input type="checkbox" name="visible" value="1" <?=$visible?'checked':''?>><span class="switch-ui" aria-hidden="true"></span><span class="switch-text">Show</span></label></form><form method="post" class="inline-form"><input type="hidden" name="action" value="set_enabled"><input type="hidden" name="dir" value="<?=h(basename($d))?>"><label class="switch-label"><input type="checkbox" name="enabled" value="1" <?=$enabled?'checked':''?>><span class="switch-ui" aria-hidden="true"></span><span class="switch-text">Run</span></label></form></div><div class="admin-actions"><?php if($running): ?><span class="button disabled" title="Rendering now"><?=h(ucfirst($runStatus))?></span><?php else: ?><a class="button" href="?edit=<?=rawurlencode(basename($d))?>">Edit</a><?php endif; ?></div></div><h2><?=h($meta['title'] ?: ($info['title'] ?? basename($d)))?></h2><p class="meta"><?php if($meta['date']): ?><span><?=h($meta['date'])?></span><?php endif; ?><?php if($meta['location']): ?><span><?=h($meta['location'])?></span><?php endif; ?><?php if(!$hasVideo): ?><span>No video</span><?php endif; ?></p><?php if($meta['description']): ?><p class="description"><?=nl2br(h($meta['description']), false)?></p><?php endif; ?><p class="details"><?=h(basename($d))?> · <?=h($info['file_count'] ?? count(list_files($d)))?> files · <?= $enabled ? 'Rendering enabled' : 'Rendering disabled' ?> · <?= $visible ? 'Shown' : 'Hidden' ?><?= $running ? ' · '.h(ucfirst($runStatus)) : '' ?></p></div></article><?php endforeach; ?></div><?=page_links('edit',$editPage,$editPages)?></section><?php endif; ?>
+<?php if($tab==='edit'): ?><section><h2>Existing input dirs</h2><?php if(!$dirs): ?><p>No input directories yet.</p><?php endif; ?><div class="admin-list video-list"><?php foreach($dirsPage as $d): $runStatus=input_dir_status($d); $running=input_dir_running($d); $enabled=input_dir_enabled($d); $preview=input_dir_preview($d); $state=input_dir_state($d); $fullOutput=basename((string)($state['output'] ?? '')); $previewOutput=basename((string)($state['preview_output'] ?? '')); $hasFullVideo=$fullOutput !== '' && is_file($config['videos_dir'].'/'.$fullOutput); $hasPreviewVideo=$previewOutput !== '' && is_file($config['videos_dir'].'/'.$previewOutput); $displayOutput=($preview && $hasPreviewVideo) ? $previewOutput : ($hasFullVideo ? $fullOutput : ($hasPreviewVideo ? $previewOutput : '')); $hasVideo=$displayOutput !== ''; $previewVideo=$hasVideo && $displayOutput === $previewOutput; $canShow=$hasFullVideo && !$preview; $visible=$canShow && input_dir_visible($d); $info=$dirInfo[basename($d)] ?? input_dir_info($d); $data=read_data($d); $meta=cached_video_metadata($displayOutput, $data); ?><article class="video-row admin-video-row"><div><?php if($hasVideo): ?><video controls controlsList="nodownload" oncontextmenu="return false" preload="metadata" src="<?=h($config['public_videos'].'/'.rawurlencode($displayOutput))?>"></video><?php else: ?><div class="video-placeholder"><img src="assets/img/moto_travel.png" alt=""><span>No video yet</span></div><?php endif; ?></div><div class="video-info"><div class="admin-row-top"><div class="admin-switches"><form method="post" class="inline-form"><input type="hidden" name="action" value="set_preview"><input type="hidden" name="dir" value="<?=h(basename($d))?>"><label class="switch-label"><input type="checkbox" name="preview" value="1" <?=$preview?'checked':''?>><span class="switch-ui" aria-hidden="true"></span><span class="switch-text">Preview</span></label></form><form method="post" class="inline-form"><input type="hidden" name="action" value="set_enabled"><input type="hidden" name="dir" value="<?=h(basename($d))?>"><label class="switch-label"><input type="checkbox" name="enabled" value="1" <?=$enabled?'checked':''?>><span class="switch-ui" aria-hidden="true"></span><span class="switch-text">Run</span></label></form><form method="post" class="inline-form"><input type="hidden" name="action" value="set_visible"><input type="hidden" name="dir" value="<?=h(basename($d))?>"><label class="switch-label"><input type="checkbox" name="visible" value="1" <?=$visible?'checked':''?> <?=!$canShow?'disabled':''?>><span class="switch-ui" aria-hidden="true"></span><span class="switch-text">Show</span></label></form></div><div class="admin-actions"><?php if($running): ?><span class="button disabled" title="Rendering now"><?=h(ucfirst($runStatus))?></span><?php else: ?><a class="button" href="?edit=<?=rawurlencode(basename($d))?>">Edit</a><?php endif; ?></div></div><h2><?=h($meta['title'] ?: ($info['title'] ?? basename($d)))?></h2><p class="meta"><?php if($meta['date']): ?><span><?=h($meta['date'])?></span><?php endif; ?><?php if($meta['location']): ?><span><?=h($meta['location'])?></span><?php endif; ?><?php if(!$hasVideo): ?><span>No video</span><?php endif; ?><?php if($previewVideo): ?><span>Preview video</span><?php endif; ?></p><?php if($meta['description']): ?><p class="description"><?=nl2br(h($meta['description']), false)?></p><?php endif; ?><p class="details"><?=h(basename($d))?> · <?=h($info['file_count'] ?? count(list_files($d)))?> files · <?= $enabled ? 'Rendering enabled' : 'Rendering disabled' ?> · <?= $preview ? 'Preview enabled' : 'Preview disabled' ?> · <?= $visible ? 'Shown' : 'Hidden' ?><?= $running ? ' · '.h(ucfirst($runStatus)) : '' ?></p></div></article><?php endforeach; ?></div><?=page_links('edit',$editPage,$editPages)?></section><?php endif; ?>
 <?php if($tab==='edit' && $editDir && $editRunning): ?><section><h2>Edit input dir</h2><p><code>in-dir/<?=h(basename($editDir))?></code></p><div class="err">This input directory is <?=h($editStatus)?>. Editing is disabled until the job completes.</div></section><?php endif; ?>
 <?php if($tab==='edit' && $editDir && !$editRunning): ?><section><h2>Edit input dir</h2><p><code>in-dir/<?=h(basename($editDir))?></code></p><form method="post" enctype="multipart/form-data"><input type="hidden" name="action" value="update"><input type="hidden" name="dir" value="<?=h(basename($editDir))?>"><label>Title<input name="title" value="<?=h($editData['title'])?>"></label><label>Date<input name="date" value="<?=h($editData['date'])?>"></label><label>Place<input name="place" value="<?=h($editData['place'])?>"></label><label>Description<textarea name="description" maxlength="5000" data-counter="description-counter-edit"><?=h($editData['description'])?></textarea><small id="description-counter-edit" class="counter"></small></label><label>Add images / videos<input type="file" name="media[]" multiple accept="image/*,video/*"></label><label>Add audio<input type="file" name="audio[]" multiple accept="audio/*"></label><h3>Files and captions</h3><div class="file-list"><?php foreach($editFiles as $f): $ext=strtolower(pathinfo($f, PATHINFO_EXTENSION)); $fileUrl='in-dir/'.rawurlencode(basename($editDir)).'/'.rawurlencode($f); ?><div class="caption-row"><div class="preview"><?php if(in_array($ext,['jpg','jpeg','png','webp','gif'])): ?><img src="<?=h($fileUrl)?>" alt=""><?php elseif(in_array($ext,['mp4','mov','m4v','webm'])): ?><video src="<?=h($fileUrl)?>" muted preload="metadata"></video><?php else: ?><span><?=h(strtoupper($ext ?: 'FILE'))?></span><?php endif; ?></div><div class="caption-fields"><strong><?=h($f)?></strong><?php if(in_array($ext,['jpg','jpeg','png','webp','gif','mp4','mov','m4v','webm'])): ?><input type="hidden" name="caption_files[]" value="<?=h($f)?>"><textarea name="captions[]" placeholder="Optional caption for this file"><?=h($editData['captions'][$f] ?? '')?></textarea><?php if(in_array($ext,['mp4','mov','m4v','webm'])): ?><label class="checkbox-label"><input type="checkbox" name="use_audio_files[]" value="<?=h($f)?>" <?=!empty($editData['video_audio'][$f])?'checked':''?>> <span>Use video file audio</span></label><?php endif; ?><?php else: ?><small>No caption for audio files</small><?php endif; ?></div><button type="button" onclick="deleteFile(<?=h(json_encode($f))?>)">Remove</button></div><?php endforeach; ?></div><button type="submit">Save changes</button></form><form method="post" id="delete-file-form" style="display:none"><input type="hidden" name="action" value="delete_file"><input type="hidden" name="dir" value="<?=h(basename($editDir))?>"><input type="hidden" name="file" id="delete-file-name" value=""></form><form method="post" onsubmit="return confirm('Delete this input directory?')"><input type="hidden" name="action" value="delete_dir"><input type="hidden" name="dir" value="<?=h(basename($editDir))?>"><label class="checkbox-label"><input type="checkbox" name="delete_output" value="1"> <span>Also delete generated video, if any</span></label><button class="danger" type="submit">Delete input dir</button></form></section><?php endif; ?>
 <?php if($tab==='new'): ?><section><h2>Add new movie input</h2><form method="post" enctype="multipart/form-data"><input type="hidden" name="action" value="create"><label>Title*<input name="title" required></label><label>Date<input name="date" placeholder="2026-05-25"></label><label>Place<input name="place"></label><label>Description<textarea name="description" maxlength="5000" data-counter="description-counter-new"></textarea><small id="description-counter-new" class="counter"></small></label><label>Images / videos*<input type="file" name="media[]" multiple required accept="image/*,video/*"></label><label>Audio (optional)<input type="file" name="audio[]" multiple accept="audio/*"></label><button type="submit">Create input-dir</button></form></section><?php endif; ?>
@@ -415,9 +446,9 @@ document.querySelectorAll('.admin-switches input[type="checkbox"]').forEach(func
       const action=data.get('action');
       const titleEl=input.closest('.video-info')?.querySelector('h2');
       const title=(titleEl?.textContent || '').trim() || json.dir || data.get('dir') || 'input dir';
-      const quotedTitle='“'+title+'”';
-      if(action==='set_visible') showToast((input.checked?'Shown: ':'Hidden: ')+quotedTitle, true);
+      const quotedTitle="'" + title + "'";if(action==='set_visible') showToast((input.checked?'Shown: ':'Hidden: ')+quotedTitle, true);
       else if(action==='set_enabled') showToast((input.checked?'Run enabled: ':'Run disabled: ')+quotedTitle, true);
+      else if(action==='set_preview') showToast((input.checked?'Preview enabled: ':'Preview disabled: ')+quotedTitle, true);
       else showToast('Updated '+quotedTitle, true);
     }catch(e){
       input.checked=previous;