Instruct: Classify a given review into positive or negative sentiment.
Query: Don't waste your money!

This won't work in pre-2003 Sony devices, as Sony made a design mistake on original memory stick (and kept its consumers in dark). Neither would existing card readers work.These sticks contain MagicGate protection. This means that you won't get even 488 MegaBytes of actual space from this 512 MillionBytes stick. MagicGate uses up significant space (40MB) and create all kinds of hassles in transfers of things like mp3's.But wait that's not all, these sticks are kinda obsolete already. These won't work in any SonyEricsson cell phones or smaller Sony devices like Stick Walkman & newer U series Cybershot cameras.If you want to invest in sticks buy a MS Duo Pro stick, the latest of half a dozen stick formats from Sony. (Soon most cell phones will have a slot for removable flash media) Or you can say no to all Sony devices and buy SD/MMC based gadgets to avoid all these hassles.