Sony 4 GB Memory Stick PRO DUO Media (MSX-M4GS) (Retail Package)

• 4 GB storage capacity with 3.66 GB available
• Minimum write speeds of 15 Mbps
• Includes adapter for use with Memory Stick PRO compatible devices
• Transfer speed up to 160 Mbps
• 4 GB of storage for your compact digital camera, portable audio device, or PSP Handheld Entertainment System not for camcorders DCR series

The Sony 4 GB memory stick is a fake. When I pulled it up with my USB it only said there was 1.60 GB available, meaning there is supposed to be at least 3.40 GB more of free space on it. This is the first and last time I'll purchase anything from this seller.

UPDATE:

I just received a call from the company Worldwide Industries themselves , and when I notified them about the issue, they told me to contact sony to confirm if this was a fake product. The man in customer service was pressuring me to remove the bad feedback I gave them for my disatisfaction for the product, and as gullable as I was, I did. When I called up Sony, their personnel indeed said that this was fake and there should at least be 3.5 GB available. I should of followed my first insticts, but all I can do to help those who are contemplating on buying from this seller is telling them to NOT support this seller. They have customer service that tries to con you out of your cash. Just like one of the reviewers below said, "this is disgusting."

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I bought one from "allways-satisfied" it was very slow in the beginning then it stopped working forever!!

actually I was surprised with the price it was only $37.88

My advice is that you have to buy from Sony only.

Read Best Reviews of Sony 4 GB Memory Stick PRO DUO Media (MSX-M4GS) (Retail Package) Here

Initially I was thinking of getting a Sandisk 4GB Memory Stick PRO Duo for my PSP, for about $10 cheaper. But I had some negative experience with Sandisk flash memory cards before so I decided to get the real Sony one. I haven't had my Sony 4GB for long enough to know its long-term durability, but so far it's been totally worth the extra 10 bucks. It's fast and reliable, which gives me a peace of mind (worth more than $10, I hope). You get about 3700MB of usable storage which is still plenty.

This will hold my game saves and a couple movies plus my favorite episodes from The Simpsons as well as some MP3 files and photos for a while. I look forward to the day when Sony upgrades the PSP's firmware to allow the use of the upcoming 8GB (reportedly already available in Japan) and 16GB Memory Stick PRO Duo cards.

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I originally had a 2 gig Memory Stick. I thought it had so much room I'd never fill it up. Then I decided I'd go with this 4 gig stick for those times on vacation, etc. when you're taking a lot of pics and video. This thing is truly amazing!!! I've been taking pictures like crazy (my family just groans each time I start snapping pictures). I have hardly scratched the surface in storage on this stick.

I highly recommend it. It's so easy to insert into my computer and download pictures.

It's wonderful!!!

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i bought one and it didnt work so i sent it to sony and got it back and they said it was a fake and that they wouldnt fix it of course then i called amazon and told them and they said to contact the seller which i did and now im waiting to get my money back worse purchase i have ever made