Rating: 
Summary: Corrupts data- deserves 0 stars
Review: I purchased a SanDisk 256MB SD card for my Palm device due to my satisfaction with past SanDisk products. I immediately noticed that the card read/write speeds were extremely slow, and caused most multimedia applications to skip because they couldn't read the data fast enough. After about a week, I started getting corrupted files on the card, until it was completely unreadable.I had it replaced by SanDisk, and the new one only lasted two days before failing in the same manner. I did some research on the web, and found numerous sites reporting hundreds of failures in these cards. It seems that many of the Chinese made SD cards out there are susceptable to failing. Panasonic and a few other Japanese manufacturers seems to be the only makers who are making a reliable card. I am throwing this useless card away and purchasing a Panasonic. My data is more important to me than saving a few dollars at this point. I would recommend staying away from SanDisk SD cards until they have solved these problems. Amazon sells Panasonic as well as Simple Technology cards, which seem to be sourced from a reliable manufacturer.
Rating: 
Summary: Seems to work fine
Review: I recently got this 256 MB module for my Kodak 6340 camera, and it seems to work fine. No formatting was necessary. Its write speed is not that great, but seems to be about the same speed as the internal memory in the camera. I was told by Sandisk support that the burst write speed for the module is 10MB and the sustained write speed is under 1 MB. The module worked well in the Sandisk 6-1 USB 2 reader and was identified without any setup in Windows XP pro. It would be better if the sustained write speed was quicker.
Rating:
Summary: The 2 cards I have seem to work fine for me ...
Review: I recently purchased a Panasonic Lumix DMC-FZ10 digital camera (4 megapixel) and 2 of these cards to go with it. When I first inserted the card and started using it, it locked up. I formatted the card and tried again ... since then, no problems. I've taken still pictures and video ... and haven't had any problems with either. Perhaps I just got lucky, but I can't say anything bad about this card.
Rating: 
Summary: Great product
Review: I use it in my Pocket PC Phone edition. I download my emails with all the attachements. When I am in a meeting I have everything that I need.
Great product. Think about it 256 Meg of data available "off line" I should add that the card I have is made in Taiwan not made in China (Mainland) I have heard that there is a high rate of failure with the made in China.
Rating: 
Summary: Lost all my Christmas photos!
Review: I used this memory card for my digital camera, and lost ALL the photos of my little baby's first Christmas!
I'd used it for a couple of months with no problem, downloading pics to my computer time and time again. Then Christmas morning I go to turn on the camera, and WHAM! All pics lost! The card is now useless in all devices.
I'm trying another brand. Please do not make the same mistake I did.
Rating:
Summary: Easily break, bad product
Review: I was trying to put mp3 files on this SanDisk 256mb SD disk, however, I got several delay write error/warning and then my card becomes unreadable. I can't format it, I can't read it. It's DEAD!! This is the second time that I have problem with the card. I am getting it replaced again!! This card is easily break, not very stable. Don't waste your money.
Rating: 
Summary: Slow writing causes unreadability if you work too fast.
Review: I've got a Kodak 4330 Digital Camera and bought this card with it at the same time. Since then, I've lost a few images and videos from using the card. I had the same issues as another person here, after taking videos and photo, my camera would slow down intolerably, so much that whenever I tried to copy the images onto my PC, it timed out. At first I thought it was the batteries running out but after charging them I still had the same issue. Eventually, I found that if I removed the memory card, the camera worked fine. I mucked around with it some more and found the problem. If you take photo's too fast, you can stuff the card. I did a few run-throughs clicking madly and consistently got the problem occuring (I had to format the card to get it working again). I found that especially when taking video, if you stop recording and start another recording just a *bit* too quickly, you basically can't take any more photo's or recordings as they all become unreadable. What this boils down to is: Don't work too quickly. You have to take photo/video, wait 3-5 seconds. Take photo/video, wait 3-5 seconds and so on (and you REALLY have to wait 3-5 seconds). Unfortunately for me, there are times when I do hit the button just a bit too quickly and BAM, I've instantly ruined everything I've just taken. So, if you work slow and steady you should be fine. It's a decent card, but if you've got the money, I'd suggest looking at a card that works a bit faster. Actually, if you check www.sandisk.com they tell you this about the card:
Why is my card not accessible or my pictures and files can't be opened?
- Taking pictures too fast so the camera cannot finish writing them before the next one is taken.
- Turning off the camera while it is still saving information.
- Removing the card while the camera is still saving data to it.
- Taking pictures with weak batteries.
- Large static charges to the card.
- Airport x-ray machines (we recommend carrying cards on your person).
- Sitting the cards on or near strong magnetic sources.
- Removing the card from the reader while you have files that are on the card open.
- Removing the card from the reader while it is still copying files to the hard drive.
- On a Mac, removing the card without first trashing the icon.
- On NT, removing the card without first running safe swap.
- On ME and win 2000, removing the card without first stopping it.
- File corruption is caused by many things and our memory cards are less susceptible than regular hard drives or other media with moving parts. To recover the pictures you can try the following:
1. File recovery software will work in some cases (query on the internet for file recovery).
2. Locate a disk recovery service in your area (Try DriveSavers on the web at www.drivesavers.com or by phone at 1-800-440-1904. You may also try a search on the internet for data or disk recovery.)
3. Run Scandisk against the card. As I said, it's a decent card and other than this, I haven't had any other problems with it. Just remember to work slowly.
Rating:
Summary: It works but...
Review: It is too slow to be of any use for what the newest digital cameras are capable of. It cannot record 30fps video for more than about 15 to 20 seconds and cannot keep up with burst mode on faster cameras.
Rating:
Summary: Thanks for the Memories
Review: It's small. It's reasonably priced. It does what it's supposed to do: It remembers.
Cards such as this one go into devices that have slow processors. Have realistic expectations.
Rating:
Summary: If there was a 0-star, I would give it
Review: Let me first say, spend the money and buy a card that will work... I bought a SanDisk 256MB SD card and never had a pleasant experience with it. My intention for the card was to use with my Dell Axim PDA and over and over again it would just format itself and I would lose all my data. I thought maybe I got a defective card, I sent it back, got a new one and the same problems occured. After doing much research, I have come to terms that the SanDisk product line is very cheap and faulty.
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