Qdea today released Synchronize! Pro X 3.0, a major upgrade of its Mac OS X backup and file synchronization utility. Version 3.0 archives files that are replaced or deleted, so that old files can be accessed later. Archived files can be grouped into convenient sizes for writing to CD-R or DVD, and archive disk space is automatically reclaimed by removing the oldest files to make space for new files. Synchronize! Pro X sells for US$99.95