Mireth Technology has released version 5.7 of ShredIt X, its file shredder and hard drive cleaner software for Mac OS X. Version 5.7 adds a scheduled freespace shredding feature. The utility comes with a wide range of features, including built-in safety features along with advanced shredding features such as, government standards compliance and a configurable overwrite pattern. ShredIt X is priced starting at US$19.95.