Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't work as advertised

This disk does not clean DVD players, only CD players or possibly a home unit combo CD/DVD drive (not a computer drive). The package clearly states "Laser lens Cleaner for CD and DVD Players". Insult to injury: the seller, SAA Investment di not make good on my complaint - first time I've been burned on an Amazon purchase.