Sandisk 4GB M2 Memory Stick Micro (SDMSM2-4096, Bulk Package)

Using it with a Sony Ericsson cellphone, it works just like it should. Can't believe that the phone originally shipped with a 256mb card.

Put the micro memory chip to replace the 1GB I had in there. Recognized it as (close to) 4GB and worked with no noticeable slowdown.

I used for my Sony Ericsson P1 and work fine, some times onece every 2 moths maybe, give me a error, but suppose is the phone, just have to turn off and on, everithing is fine.

I bought this to use in my Sony Ericsson W580i Jungle Green Phone (AT&T), and I couldn't be happier. Wow. 4GB of storage, and I've used it for photos, video, and audio with great results.

My main reason for purchasing the extra memory was to be able to carry around the review/refresher/practice CDs (rendered into .mp4s) I obtained with Rosetta Stone V3: German, Level 1, 2 & 3, and this fits the bill perfectly.

Slap it into the card reader that comes with it and then into your computer, and read/write times are a flash. VERY happy with this product, and I saved more than half price -- compare Sony 4 GB Memory Stick Micro! Go SANDISK!!!!!!!!!!!!!

Five Stars PLUS!

works good with my sony ericson w580i. if i drop the phoneit some times it stops reading the card. i have to restart it or clean the card with some alcohol. i blame it on the phone for being cheap and this is my 3rd one (due to dropping)