New NPE Optical Storage Solutions LLC filed suit (2:14-cv-00264) against ASUS, Dell, HP and Philips & Lite-On Digital Solutions (PLDS). The patent-in-suit relates to a compact disc player that reads compressed digital audio data (6,215,754). Optical Storage accuses disc drives manufactured by PLDS and personal computers manufactured by ASUS, Dell, and HP that incorporate those drives of infringement.