Prosoft Engineering today released , its comprehensive software utility geared toward iPod users. TuneTech repairs lost or damaged music, corrupted data structures, creates an exact copy of iPod contents, permanently deletes unwanted files, and optimizes the file layout of music. Other features include undelete, to recover accidentally deleted music, and duplicate, to make an exact copy of one iPod to another. TuneTech requires Mac OS X 10.3 or later and is available for $60.