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Understanding Memory Cards

photographylife.com

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Re: Understanding Memory Cards

#4
This is an extremely verbose article, but for most people I would highlight the most important things (for SD cards at least):

Buy a real brand: people have there own opinions on this, but to me this means Sandisk, Samsung or Verbatim. Had a bad experience with Lexar once but as always ymmv.

Buy from a real retailer: this means B&H or Adorama or a not-shady brick and mortar store. Amazon will happily ship you counterfeit cards that will crapp out when you need them most, like ebay will. This is coming from someone that chooses to buy a ton of their electronics from ebay, Aliexpress or street hawkers.

Re: Understanding Memory Cards

#5
post #4

This is an extremely verbose article, but for most people I would highlight the most important things (for SD cards at least): Buy a real brand: people have there own opinions on this, but to me this means Sandisk, Samsung or Verbatim. Had a bad experience with Lexar once but as always ymmv. Buy from a real retailer: this means B&H or Adorama or a not-shady brick and mortar store. Amazon will happily ship you counter…

Yup. The street bazaar in Amazon is quickly turning into a hawkers market where you have to know you’re buying a fake Rolex and negotiate accordingly. The problem is that no one in the general public knows this.

A cursory glance around AliExpress shows SD cards with “decorative” labels - and straight up fakes. The problem you get is that any joe blow can buy from Ali- resell on Amazon or elsewhere - and be truthful in saying that he was trusting his seller.

Re: Understanding Memory Cards

#6
It’s such a ridiculous dark pattern to only advertise read speed when in almost all cases write speed matters more. Also, the SD speed class notation is almost totally obsolete and anachronistic because these days even the fastest class 10 has a minimum speed requirement so low it tells you almost nothing about the card’s performance.

Re: Understanding Memory Cards

#8
post #7

I wonder which of them, if any, contain a controller chip that does wear leveling? All PC SSDs have them, even very small ones like M.2 2230.

They all do. It isn't always a discrete chip though. Like in the case of a MicroSD the memory and controller is all integrated. You can open up some full size SD cards though and the memory and controller will be separate chips.

Re: Understanding Memory Cards

#9
post #4

This is an extremely verbose article, but for most people I would highlight the most important things (for SD cards at least): Buy a real brand: people have there own opinions on this, but to me this means Sandisk, Samsung or Verbatim. Had a bad experience with Lexar once but as always ymmv. Buy from a real retailer: this means B&H or Adorama or a not-shady brick and mortar store. Amazon will happily ship you counter…

I haven’t had too many issues ordering from Amazon, but I go through much effort making sure seller is reputable every time and listing was not swapped.

Both Adorama and B&H sell on Amazon too, but for photo/video gear I would go to B&H direct.

Re: Understanding Memory Cards

#10
post #4

This is an extremely verbose article, but for most people I would highlight the most important things (for SD cards at least): Buy a real brand: people have there own opinions on this, but to me this means Sandisk, Samsung or Verbatim. Had a bad experience with Lexar once but as always ymmv. Buy from a real retailer: this means B&H or Adorama or a not-shady brick and mortar store. Amazon will happily ship you counter…

> Buy a real brand: people have there own opinions on this, but to me this means Sandisk, Samsung or Verbatim. Had a bad experience with Lexar once but as always ymmv.

I've had always bad luck with Sandisk, both CF and SD/microSD cards.

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