SanDisk Ultra 32GB MicroSDHC

Updated: 10/15/2013: I'm on my 3rd replacement card from both Amazon AND from SanDisk... (since May of this year) they've ALL failed! First two cars were in a GS3, and the 3rd went into my GS4. The GS4 just "unmounted" and "prepared card" 3 times in a row. I copied my data off this card, quickly, and pulled it. I now have a Kingston installed, and I've owned many.. never had a problem with those. After my first card dying I became MUCH better and backup up the card, which sadly was used as a backup to the internal memory in case IT failed. (Internal memory is much harder to retrieve data from than a card which can be pulled and moved, right?) Anyway... seriously, do your google-work on this card and you will find many people complaining about the same issue. SanDisk is good at "marketing a brand" but when it comes to making a quality card, they fail. And yes, there will be MANY people who have had "no problems with mine"... good for you. I look at the weakest link and also how the company approaches it. After they covered up the truth before FINALLY admitting there was an issue, I have zero faith in this company and their ability to trust them with my data. Original Review: I regret buying this card. This is an example of "it goes to show you that you should always google your product before buying" just to see what others are saying about it first. There is clearly something going on either with the connection of this card (32/64 versions) and these phones. They will work fine for a while until the sudden "card removed" message pops up which means that the card has failed. Personally, I think it's the card itself, not the device, unless the device is eating the cards alive. Either way, the card slowly starts to fail.. it will stop functioning for a while, then come back. That's your first warning. If this happens, get your stuff off as soon as it comes back while you can. It will slowly start to come and go.. I was fortunate to ultimately get my data off with enough patience, but lesson learned. Amazon was ultimately helpful in replacing my card even slightly out of warranty.. I will say that Sandisk will replace the card for life, however, what they can't and won't replace are the memories you lose when their card dies. When calling sandisk customer support, they say they are unaware of any issues as was described.. well, apparently they suffer from the same issues as companies such as apple and others who also aren't aware of google and bing where there are usually pages and pages and pages of people discussing these "un-known issues".. After talking further with SanDisk, a supervisor tells me that there IS an issue (would be nice if there was more warning from them NOT to use this card with Samsung, but of course, we don't want a bag image now do we? because their image is more important than our data.. after all, they'll send you another card, simple as that! well, no.. it's not) Anyone in the data storage business who has no concern over data integrity shouldn't be in the data storage business. Yes cards and drives and electronics do fail, but the lack of pro activeness to protect consumers vs profits isn't acceptable. Also, while SanDisk has a big name, big names don't always equal big quality.. it just means they invested enough into their marketing and made enough of the right deals to get into the market place. I was sent a new card.. the supervisor at SanDisk tells me "personally, I'd replace your failed card with the new one, in the very rare instance that they fail, SanDisk is still a good card.. they're everywhere".. uh huh.. because they're everywhere, that makes them good? So the new card comes, it sits on the shelf.. I replaced it with a Kingston. I also warned as many people as I could in this situation to move their data.. good call.. two more phones with this card have done the same thing, in my own circle... but remember, "I'd use a Sandisk card again" I'm told. HAH! To my friends that have these cards, I already got them to move their data off the cards and to their phones.. and made them back up. The sad thing is, some of us use these cards AS the backup because we're afraid the phones, themselves, will die with the data stuck in them. (Think iPhone with no removable internal memory.. at least an SD card can be "removed" and "moved" to a new device, a reason I dropped my iPhone for the android side) Long story short... buy this card at your own risk. I rarely give a product a 1 star rating, however, due to the multiple failures across multiple cards, and multiple devices, in a short period of time, in unrelated cases, that were close to home.. combined with other people describing the same exact issues on the web, and the fact that it took 4 phone calls to SanDisk before someone FINALLY admitted that they were aware of the issue... it's a 1 star for not only this item, but consider it a 1 star for the company itself for taking the attitude they did as well. I could care less if this issue turns out to be an issue related only to Samsung phones or not, the fact is that if they did in fact know about it, they shouldn't install these cards in the phones knowing the potential risk of sudden failure, and should put out bulletins to the retails or state that they aren't compatible with these devices. Data is not just "data".. it's birthday parties, it's one in a life time trips, it's births of new born babies, etc. That's not just "data".. those are memories you may never get back. For the record, back ups are made.. but when you're on a vacation, you've taken over 400 photos, and haven't even had a chance to get to your computer TO do the backup, don't sit in a chair at SanDisk and tell me the importance of data backup.. I'll tell YOU the importance of being honest to the consumer and building a product that works. BUY AT YOUR OWN RISK. Personally, I'd pass this card up all together. I don't trust it and neither should you.