Works with no problems on both of my Sony Ericcson W580i's. Hard to find anywhere else at time of my purchase.

Great product, great price & great shipping. Works like a charm on my W580i. Though Sony says the phone cannot "see" more than 2GB, my phone seems to recognize its a 4GB card. This with any Sony phone makes any Iphone & its price tag look bad.

well...I'd love to say that it's a great product, HOWEVER...."Digital Media Source" the vendor I purchased it from shipped me the incorrect item, and then refused to work with me at all to rectify the situation. They, in fact, shipped me a cheaper item. I received a usb thumb drive...I ordered a card for my camera. Attempts to contact the vendor were only possible via e-mail. Attempts to obtain a phone number to call, or to have a call placed to me were futile. The 2 e-mail responses I received were 2 words long, and completely unhelpful. Repeated attempts at e-mailing this vendor were simply ignored. I finally resorted to an ugly e-mail referring to the vendor's possible body fat percentage, and propensity for messily eating potato chips on his mothers couch in the basement out of sheer frustration. I will NEVER order anything from them, or ANY Amazon affiliate again. Thank you Digital Media Source and Amazon. You have successfully narrowed the scope of any online shopping I may do in the future, making it possible to quickly weed out vendors that might be out to screw me (or you, consumer).

Took it out of the pack and added to my SE W580i.
Added Music, Photographs and was ready to go...

I was very happy to find that there was a non-Sony brand memory chip for my new Sony-Ericcson mp3 phone. The Sony branded chip was much more expensive. Since I've had experience with SanDisk previously, I decided to give this one a try. Once again, SanDisk came through without a hitch. I'd recommend this to anyone looking for an M2 style memory stick.