U盘用时间长了，不免产生许多像Thumbs.db这样的trash，你可以试着用CleanMedia来清理它们，CleanMedia 默认可以删除Trashes，.DS_Store，.fseventsd，.vbt5，Thumbs.db，Spotlight-V100de等格式的垃 圾文件，支持自定义文件类型，支持的外存储设备除了U盘还有SD卡，手机，HDD等类型设备。

CleanMedia v1.6.3 Multilingual Mac OS X | 5.6 MB

Languages: English, Bengali, Dutch, French, German, Hebrew, Italian, Japanese, Spanish

Removes the specific Mac OSX hidden files from external SD-Cards, USB sticks and disks form connected mobile phones, if they are to be used with other operating systems. You can only use media with FAT16/32, NTFS and exFAT filesystem. CleanMedia also increases your available disk space, while it removes the deleted files and folder from the hidden directory ".Trashes".

CleanMedia v1.6.3 Multilingual MacOSX