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SD cards: genuine or fake ?
Old 11th July 2018
  #1
Lives for gear
SD cards: genuine or fake ?

For anyone using SD cards in remote music harvesting, this makes for sobering reading. As the article says, the incentives for fakers are high ! It contains a link to a test utility to check your cards against: Tutorial: How to spot a fake memory card — Oeding.com
Old 11th July 2018
  #2
This is why I will never ever buy memory cards from eBay or Amazon Marketplace (which is different to Amazon themselves).

Instead I stick to stores I can 110% trust, such as Adorama or B&H
Old 11th July 2018
  #3
Lives for gear
Quote:
Originally Posted by IronFilm View Post
This is why I will never ever buy memory cards from eBay or Amazon Marketplace (which is different to Amazon themselves).

Instead I stick to stores I can 110% trust, such as Adorama or B&H
By doing that you are increasing (but not guaranteeing) the chance of getting the genuine article. Better still is to visit the website of your chosen card mfr, and see who they supply as distributors/retailers in your country. I'd then confirm any purchase by testing, since so much hinges on it......

BTW I've just found a set of newer, more specialized tests (the one cited in the link above dates back to 2008)

Here's the newer set: 4 Tools to Test and Detect Fake or Counterfeit USB Flash Drives • Raymond.CC
Old 11th July 2018
  #4
B&H and Adorama are distributors and have a rock solid returns process if any slip up are made somehow.
Old 11th July 2018
  #5
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Muser's Avatar
I probably have about 30 to 40 different cards of type CF, SD, Micro SD, etc and various Adapters.
possibly even more than that in fact.

of all those cards, 80% were probably acquired via ebay. only one was fake. it was a few years ago, it was supposed to be 16GB but it was 2GB and was probably hacked to come up as 16GB. the point where you might more often come across hacked sticks or cards these days, it when you are hitting 32GB onwards. very low priced 128 256 upwards are very likely hacked.

a normally priced ebay seller with a good history and very focused on memory is generally something you can really on. preferably from your own country and especially important if you are punting on 64GB upwards.

I'll tend to be happy go Sandisk, Samsung, Hitachi, Toshiba. there are others but I generally opt for these because those are generally also readily available in my location. one important factor with performance is often due to the controller types these manufacturers tend to include with the design. for such a reason, I tend to avoid Lexar.

lots of the cheapest stuff from ebay can tend to suffer from limitations in the onboard controllers and an increased likelihood that rejects are mixed in with the batch you are dipping into. again this becomes way more important when you are looking for 64GB upwards.

other oddities can be with adapters which come with something like a TF card. the card can often only be relied on to work with the provided adapter. it's basically hit and miss as to whether it will work with other adapters for the other TF cards.

if you are dealing with older technology, the speed class of the card can become important. add to that that, in the past compatibility was a larger issue then than it probably is now. so the speed class issue can make an old device reject the card if the device is programed to reject the speed class of the card, because it assumes it can't meet the cards minimum data transfer speed.

this isn't always the case though. I've had a class 4 kingston rejected by a unit which was made around the time that class 2 was the state of the art. but while it encountered failure point on the class 4 kingston, it seemed to work on a blue EVO samsung TF card which was class 10. and that card is probably ten years younger than the hardware devices release date.
Old 11th July 2018
  #6
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Thomas W. Bethe's Avatar
I just purchased two USB sticks (32 GB USB 3) made by Sandisk. One works great the other would not "mount" on either my Mac or my PC. I took it apart and found out the reason. There was no memory inside the case, just the USB 3 connector and the case, I wonder how that got through the QC process??? I tossed it and notified the Amazon about the problem. When stuff was made in Japan one could count on it being well made and work well, China not so much. These were made in China. I think we will see a lot more fake units when the prices climb for legit items because of the tariff hikes being proposed.

-TOM-
Old 11th July 2018
  #7
Lives for gear
Quote:
Originally Posted by Muser View Post
If you are dealing with older technology, the speed class of the card can become important. add to that that, in the past compatibility was a larger issue then than it probably is now. so the speed class issue can make an old device reject the card if the device is programed to reject the speed class of the card, because it assumes it can't meet the cards minimum data transfer speed.

this isn't always the case though. I've had a class 4 kingston rejected by a unit which was made around the time that class 2 was the state of the art. but while it encountered failure point on the class 4 kingston, it seemed to work on a blue EVO samsung TF card which was class 10. and that card is probably ten years younger than the hardware devices release date.
Which is all pretty ironic when you consider that recording audio streams is such an undemanding task in terms of data speed that class 4 is all that's necessary (maybe even class 2 ?) Class 6 and above is overkill in purely data transfer terms.
Old 11th July 2018
  #8
Lives for gear
Quote:
Originally Posted by Thomas W. Bethe View Post
I just purchased two USB sticks (32 GB USB 3) made by Sandisk. One works great the other would not "mount" on either my Mac or my PC. I took it apart and found out the reason. There was no memory inside the case, just the USB 3 connector and the case, I wonder how that got through the QC process??? I tossed it and notified the Amazon about the problem. When stuff was made in Japan one could count on it being well made and work well, China not so much. These were made in China. I think we will see a lot more fake units when the prices climb for legit items because of the tariff hikes being proposed.

-TOM-
Not even any negative feedback to Amazon, or a request for a refund ? Hopefully they'll act on your notification and check back through their supply chain....they're the group who has the clout to remedy the situation. Hard to say whether what you experienced was a QC or a substitution/fake issue ?
Old 12th July 2018
  #9
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Muser's Avatar
Quote:
Originally Posted by studer58 View Post
Which is all pretty ironic when you consider that recording audio streams is such an undemanding task in terms of data speed that class 4 is all that's necessary (maybe even class 2 ?) Class 6 and above is overkill in purely data transfer terms.
you would think so as class 2 is supposed to be 2MB per second minimum. and when you look at some of the technical information for designers, something can still be class 2 but still have an upper transfer speed of 4 or 6MB ps.

so I assume that because you have a combination of that and the controller designs in the cards and the way the designer might make assumptions based on the cards they test with the design, explains why certain products sometimes give what they state as compatible cards. stating compatible cards also implies they are the cards the designer has tested which work. while the other cards were found to work unreliably.

it also helps explain why you can also get a spate of people starting to post what working cards they have which work for X product, and which cards don't. it's probably more generally reliable these days, but specialist high speed cards for image capture, might not play so well with products designed for audio capture. my hunch is it's usually the cards own controller design, and the way the product may or may not be meeting the minimum data transfer speed for the given card.
Old 17th July 2018
  #10
Gear Guru
 
John Willett's Avatar
 

Thumbs up

Quote:
Originally Posted by Thomas W. Bethe View Post
I just purchased two USB sticks (32 GB USB 3) made by Sandisk. One works great the other would not "mount" on either my Mac or my PC. I took it apart and found out the reason. There was no memory inside the case, just the USB 3 connector and the case, I wonder how that got through the QC process??? I tossed it and notified the Amazon about the problem. When stuff was made in Japan one could count on it being well made and work well, China not so much. These were made in China. I think we will see a lot more fake units when the prices climb for legit items because of the tariff hikes being proposed.

-TOM-
Amazon would have replaced it for free.

I have found Amazon superb at this. I had a Black & Decker battery dust buster which stopped working suddenly after about 18-months (still within the 2-year guarantee). Amazon replaced it with a new one free-of-charge which I received the next day and sent return labels for returning the faulty one free-of-charge.

Excellent service.
Old 17th July 2018
  #11
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Thomas W. Bethe's Avatar
Quote:
Originally Posted by John Willett View Post
Amazon would have replaced it for free.

I have found Amazon superb at this. I had a Black & Decker battery dust buster which stopped working suddenly after about 18-months (still within the 2-year guarantee). Amazon replaced it with a new one free-of-charge which I received the next day and sent return labels for returning the faulty one free-of-charge.

Excellent service.
Yes Amazon is GREAT at customer service.

I had not used the two new USB sticks and it was about 2 months after I purchased the two USB sticks that I needed to use one. When I took it apart and there was no memory in it I tossed it. I probably should have contacted AMAZON before tossing it.

Oh well my bad.


Did you see this Amazon Founder Jeff Bezos Reaches Top Spot As Wealthiest Billionaire | Stock News & Stock Market Analysis - IBD

He must be doing something right.
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