Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst media in the world.

This media is pure crap. Don't waste your money. Appears in the begin as perfect but lost data. I evaluate this media using PI/PO tests and this item can achieve PI > 10000 after some months. This is the worst media in world. Ritek G03 was one of the best media in the world but when they introduced G04 and this G05 media the problems beginned. I buyed more than 2000 medias, with logo and without logo (printable). When I sensed that I am losting media I tested ALL medias and passed them to Sony medias (initially I thinked that was my recorder and after the armazenation method until I discovered that it was the media when I tested with DVDInfo. All G04 and G05 are crap and I tested all my media.