mnsweeps Posted July 26, 2014 Report Share Posted July 26, 2014 I used a 32GB PNY microSD card and it works great. I moved all my music files to a Samsung 64GB microSD card and the unit says "unrecognized card" or something like that.... Quote Link to post Share on other sites
joemamma1954 Posted July 26, 2014 Report Share Posted July 26, 2014 32 gb is largest sd card in all nex. has to be sdhc, the larger ones are sdxc or something like that. different controller and format. Quote Link to post Share on other sites
joemamma1954 Posted July 26, 2014 Report Share Posted July 26, 2014 I just put my favorite 3800 songs on sd card, If you want your whole library, then probably want to go ssd in usb inclosure. Quote Link to post Share on other sites
mythbai Posted July 26, 2014 Report Share Posted July 26, 2014 If you format 64GB to NTFS which is easy in Windows 8, or to FAT32 using 3rd party tool, then you should be OK. I'm guessing there is NO maximum size limit really to the NEX unit if you're using NTFS. Quote Link to post Share on other sites
tickerguy Posted July 26, 2014 Report Share Posted July 26, 2014 No! 64Gb+ cards are SD/XC and those cards require exFAT due to how their internal block allocation system works. If you reformat them to either FAT32 or NTFS you are begging for them to lose your data. They become unstable due to interaction between the data management algorithm in the controller (internal to the card) and the filesystem format. All these cards essentially require exFAT as a format to remain stable over time. The adoption of a proprietary, license-required format (exFAT is a Microsoft product and manufacturers have to buy a license to use it in their products) for these cards sucks, but it is what it is. Quote Link to post Share on other sites
mnsweeps Posted July 26, 2014 Author Report Share Posted July 26, 2014 So I put my 32GB back with exFAT formatting and it gave the same error. Then I re-formatted the 32GB with FAT32 and now it works great. Quote Link to post Share on other sites
mythbai Posted July 26, 2014 Report Share Posted July 26, 2014 No! 64Gb+ cards are SD/XC and those cards require exFAT due to how their internal block allocation system works. If you reformat them to either FAT32 or NTFS you are begging for them to lose your data. They become unstable due to interaction between the data management algorithm in the controller (internal to the card) and the filesystem format. All these cards essentially require exFAT as a format to remain stable over time. The adoption of a proprietary, license-required format (exFAT is a Microsoft product and manufacturers have to buy a license to use it in their products) for these cards sucks, but it is what it is. Is there any substantial proof that reformatting a SDXC will make its data unstable? I know that NTFS has extra journaling feature that require more read/write, which might add a tiny bit more to the flash wearing. But from what I read so far I don't have anywhere mentioning that the difference is big. I'm using a 64GB SDXC reformatted to NTFS in my AVIC-6000NEX, and the performance is pretty good. I don't know how long will it last honestly. But I'd probably stick with NTFS for now and happily enjoy its larger capacity over 32GB until I see some scientific figure or theory persuade me otherwise. Quote Link to post Share on other sites
jhren Posted July 26, 2014 Report Share Posted July 26, 2014 Is there any substantial proof that reformatting a SDXC will make its data unstable? ... IDK about substantial proof, but there's enough web content on the issue to surmise it's a real possibility. From what I've read on the matter, the suspected common cause is ejecting or de-energizing prior to suspending data operations. There are claims that an instability could render the card permanently useless. If a reformatted card works, I say use it... just now that you are aware of the possibility, don't be surprised if it happens. Quote Link to post Share on other sites
tickerguy Posted July 27, 2014 Report Share Posted July 27, 2014 Don't have to believe me if you don't want to; I've looked into the controller logic on these cards in some detail. Just don't put anything on the card you don't want to lose without warning. Quote Link to post Share on other sites
mythbai Posted July 27, 2014 Report Share Posted July 27, 2014 Good discussion here. I'm glad I can always learn something every time here. Quote Link to post Share on other sites
Shackleton Posted July 27, 2014 Report Share Posted July 27, 2014 Never reformat a sdxc card with anything other than fat-ex or it will corrupt the card. Quote Link to post Share on other sites
tickerguy Posted July 27, 2014 Report Share Posted July 27, 2014 BTW the reason for my somewhat-flippant response is that I've already explained, in pretty-meticulous detail, exactly why this is a bad idea several times on this forum yet people don't read before they post -- or worse, think that somehow the answer will change the more times you ask the same question..... Quote Link to post Share on other sites
jhren Posted July 27, 2014 Report Share Posted July 27, 2014 BTW the reason for my somewhat-flippant response is that I've already explained, in pretty-meticulous detail, exactly why this is a bad idea several times on this forum yet people don't read before they post -- or worse, think that somehow the answer will change the more times you ask the same question..... It would be more helpful IMO if you could just provide a link to your other post explaining those issues. Saves having to re-type and reduces other stress factors. JMO Quote Link to post Share on other sites
just blaze Posted July 27, 2014 Report Share Posted July 27, 2014 A simple search would answer a lot of these same questions. I've found a good amount of info on questions I had searching. Quote Link to post Share on other sites
tekki Posted July 27, 2014 Report Share Posted July 27, 2014 Search is your friend Quote Link to post Share on other sites
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