diff --git a/src/components/MusicPlayer.tsx b/src/components/MusicPlayer.tsx
index 6d2fc28..bfbc174 100644
--- a/src/components/MusicPlayer.tsx
+++ b/src/components/MusicPlayer.tsx
@@ -19,6 +19,7 @@ import {
   Minimize2,
   Minus
 } from 'lucide-react'
+import { formatDuration } from '@/lib/format-duration'
 
 export function MusicPlayer() {
   const {
@@ -179,8 +180,8 @@ export function MusicPlayer() {
               />
             </div>
             <div className="flex justify-between text-xs text-muted-foreground">
-              <span>{formatTime(currentTime)}</span>
-              <span>{formatTime(duration)}</span>
+              <span>{formatDuration(currentTime)}</span>
+              <span>{formatDuration(duration)}</span>
             </div>
           </div>
 
@@ -270,7 +271,7 @@ export function MusicPlayer() {
                       )}
                     </div>
                     <span className="text-xs text-muted-foreground">
-                      {formatTime(track.duration)}
+                      {formatDuration(track.duration)}
                     </span>
                   </div>
                 ))}
@@ -328,8 +329,8 @@ export function MusicPlayer() {
               />
             </div>
             <div className="flex justify-between text-sm text-muted-foreground">
-              <span>{formatTime(currentTime)}</span>
-              <span>{formatTime(duration)}</span>
+              <span>{formatDuration(currentTime)}</span>
+              <span>{formatDuration(duration)}</span>
             </div>
           </div>
 
@@ -408,7 +409,7 @@ export function MusicPlayer() {
                   )}
                 </div>
                 <span className="text-sm text-muted-foreground">
-                  {formatTime(track.duration)}
+                  {formatDuration(track.duration)}
                 </span>
               </div>
             ))}
diff --git a/src/lib/format-duration.ts b/src/lib/format-duration.ts
new file mode 100644
index 0000000..c203568
--- /dev/null
+++ b/src/lib/format-duration.ts
@@ -0,0 +1,18 @@
+export function formatDuration(ms: number): string {
+  if (isNaN(ms) || ms < 0) return '0:00'
+
+  // Convert milliseconds to seconds
+  const totalSeconds = Math.floor(ms / 1000)
+
+  // Calculate hours, minutes, and remaining seconds
+  const hours = Math.floor(totalSeconds / 3600)
+  const minutes = Math.floor((totalSeconds % 3600) / 60)
+  const seconds = totalSeconds % 60
+
+  // Format based on duration
+  if (hours > 0) {
+    return `${hours}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`
+  } else {
+    return `${minutes}:${seconds.toString().padStart(2, '0')}`
+  }
+}
diff --git a/src/lib/format-size.ts b/src/lib/format-size.ts
new file mode 100644
index 0000000..5044ff8
--- /dev/null
+++ b/src/lib/format-size.ts
@@ -0,0 +1,32 @@
+/**
+ * Units for file sizes
+ */
+const FILE_SIZE_UNITS = ['B', 'KB', 'MB', 'GB', 'TB']
+
+/**
+ * Converts a file size in bytes to a human-readable string
+ * @param bytes File size in bytes
+ * @returns Formatted file size string (e.g., "1.5 MB")
+ */
+export function formatSize(bytes: number, binary: boolean = false): string {
+  // Handle invalid input
+  if (bytes === null || bytes === undefined || isNaN(bytes) || bytes < 0) {
+    return `0 B`
+  }
+
+  // If the size is 0, return early
+  if (bytes === 0) {
+    return `0 B`
+  }
+
+  // Otherwise, determine the appropriate unit based on the size
+  const unit = binary ? 1024 : 1000
+  const unitIndex = Math.floor(Math.log(bytes) / Math.log(unit))
+  const unitSize = Math.pow(unit, unitIndex)
+  const value = bytes / unitSize
+
+  // Make sure we don't exceed our units array
+  const safeUnitIndex = Math.min(unitIndex, FILE_SIZE_UNITS.length - 1)
+
+  return `${value.toFixed(2)} ${FILE_SIZE_UNITS[safeUnitIndex]}`
+}