Vivek wrote:
Does anybody know if these are the new 20nm MLCs or are they still SLC? Hmmm wonder if those MLCs are not so good after all...
Pretty much all NAND that\'s out there is and has been MLC for a while and it\'s all fab\'ed by SanDisk/Toshiba, Intel/Micron or Samsung. It is perfectly reliable. In fact it wouldn\'t surprise me if Lexar bought their NAND from SanDisk. The difference in SanDisk vs. Lexar is not the memory cell, but the packaging and memory controller and the logic that runs the controller.
Given the nature of error I think it\'s a soft error coming from the controller/logic as opposed to NAND cells.
SanDisk is technology giant who develops and manufactures cutting edge NAND. Lexar is just a rebrander kind of like IBM vs. Dell. So it\'s not surprising that their NAND is rock solid. I think the reason SanDisk extreme pro cards are not as fast as the Lexars is that they are more conservative with testing and reliability.
I remember I had a 1GB Lexar card for my 20D back in 2005 which also failed after a few months. They sent me a replacement but I never used it. I thought they had improved in the past few years but apparently not enough...
