 /// Responsible for enumerating folders to collect files, as well as providing the files for displaying
 class MediaList
 {
-    private let BytesForSignature = 8 * 1024
+    private let BytesForSignature = 2 * 1024
 
     private let slideshowData: SlideshowData
     private var mediaList:[MediaData] = []

            let attrs: NSDictionary? = try NSFileManager.defaultManager().attributesOfItemAtPath(filename)
            let length = attrs!.fileSize()
            if let fileHandle = NSFileHandle(forReadingAtPath: filename) {
                let data = fileHandle.readDataOfLength(BytesForSignature)
                var digest = [UInt8](count:Int(CC_SHA1_DIGEST_LENGTH), repeatedValue: 0)
                CC_SHA1(data.bytes, CC_LONG(data.length), &digest)


                includingPropertiesForKeys: nil,
                options:NSDirectoryEnumerationOptions.SkipsHiddenFiles)
        }
        catch let error {
            Logger.error("Failed getting files in \(folderName): \(error)")
            return nil
        }
    }
