diff --git a/static/css/components/download-modal.css b/static/css/components/download-modal.css
index ae528b87..ceab416e 100644
--- a/static/css/components/download-modal.css
+++ b/static/css/components/download-modal.css
@@ -237,4 +237,61 @@
 [data-theme="dark"] .local-path {
     background: var(--lora-surface);
     border-color: var(--lora-border);
+}
+
+/* Add disabled button styles */
+.primary-btn.disabled {
+    background-color: var(--border-color);
+    color: var(--text-color);
+    opacity: 0.7;
+    cursor: not-allowed;
+}
+
+/* Enhance the local badge to make it more noticeable */
+.version-item.exists-locally {
+    background: oklch(var(--lora-accent) / 0.05);
+    border-left: 4px solid var(--lora-accent);
+}
+
+.local-badge {
+    display: inline-flex;
+    align-items: center;
+    background: var(--lora-accent);
+    color: var(--lora-text);
+    padding: 4px 8px;
+    border-radius: var(--border-radius-xs);
+    font-size: 0.8em;
+    font-weight: 500;
+    white-space: nowrap;
+    flex-shrink: 0;
+    position: relative;
+}
+
+.local-badge i {
+    margin-right: 4px;
+    font-size: 0.9em;
+}
+
+.local-path {
+    display: none;
+    position: absolute;
+    top: 100%;
+    right: 0;
+    background: var(--card-bg);
+    border: 1px solid var(--border-color);
+    border-radius: var(--border-radius-xs);
+    padding: var(--space-1);
+    margin-top: 4px;
+    font-size: 0.9em;
+    color: var(--text-color);
+    white-space: normal;
+    word-break: break-all;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+    z-index: 1;
+    min-width: 200px;
+    max-width: 300px;
+}
+
+.local-badge:hover .local-path {
+    display: block;
 } 
\ No newline at end of file
diff --git a/static/js/managers/DownloadManager.js b/static/js/managers/DownloadManager.js
index 08470889..2a0f5746 100644
--- a/static/js/managers/DownloadManager.js
+++ b/static/js/managers/DownloadManager.js
@@ -154,21 +154,45 @@ export class DownloadManager {
                 </div>
             `;
         }).join('');
+        
+        // Update Next button state based on initial selection
+        this.updateNextButtonState();
     }
 
     selectVersion(versionId) {
         this.currentVersion = this.versions.find(v => v.id.toString() === versionId.toString());
         if (!this.currentVersion) return;
 
-        // Check if version exists locally
-        const existsLocally = this.currentVersion.files[0]?.existsLocally;
-        if (existsLocally) {
-            showToast('This version already exists in your library', 'info');
-        }
+        // Remove the toast notification - it's redundant with the visual indicator
+        // const existsLocally = this.currentVersion.files[0]?.existsLocally;
+        // if (existsLocally) {
+        //     showToast('This version already exists in your library', 'info');
+        // }
 
         document.querySelectorAll('.version-item').forEach(item => {
             item.classList.toggle('selected', item.querySelector('h3').textContent === this.currentVersion.name);
         });
+        
+        // Update Next button state after selection
+        this.updateNextButtonState();
+    }
+    
+    // Add new method to update Next button state
+    updateNextButtonState() {
+        const nextButton = document.querySelector('#versionStep .primary-btn');
+        if (!nextButton) return;
+        
+        const existsLocally = this.currentVersion?.files[0]?.existsLocally;
+        
+        if (existsLocally) {
+            nextButton.disabled = true;
+            nextButton.classList.add('disabled');
+            nextButton.textContent = 'Already in Library';
+        } else {
+            nextButton.disabled = false;
+            nextButton.classList.remove('disabled');
+            nextButton.textContent = 'Next';
+        }
     }
 
     async proceedToLocation() {
@@ -176,6 +200,13 @@ export class DownloadManager {
             showToast('Please select a version', 'error');
             return;
         }
+        
+        // Double-check if the version exists locally
+        const existsLocally = this.currentVersion.files[0]?.existsLocally;
+        if (existsLocally) {
+            showToast('This version already exists in your library', 'info');
+            return;
+        }
 
         document.getElementById('versionStep').style.display = 'none';
         document.getElementById('locationStep').style.display = 'block';