SDXC cards

[psgarcha92]

Hey Guys
is there anyone who has tried using a 68GB SDXC with sansa Fuze RockBox? or even the original OF?
i Read on wikipedia :

"SDHC and SDXC compatibility issues

In the 3.0 specification, the electronic interface of SDHC and SDXC cards is the same. This means that SDHC hosts which have drivers which recognize the newly used capability bits, and have operating system software which understands the exFAT filesystem, are compatible with SDXC cards. The decision to label cards with a capacity greater than 32GB as SDXC and to use a different filesystem is due solely to the limitations in creating larger filesystems in certain versions of Microsoft Windows. Other operating system kernels, such as Linux, make no distinction between SDHC and SDXC cards, as long as the card contains a compatible filesystem.

SDHC and SDXC cards and hosts have these compatibility issues:

    Existing SDHC hosts will only support the SDXC cards at up to UHS104 speeds;[36]
    SDXC hosts are backward compatible with SD and SDHC memory cards.[51]
    The operating systems that currently support SDXC are: Linux (with a proprietary driver for the exFAT filesystem[52]), Microsoft Windows 7, Windows Vista SP1+,[51] Windows XP SP2 or SP3 with KB955704,[53] Windows Server 2008 SP1+, Windows Server 2003 SP2 or SP3 with KB955704, Windows CE 6+, and Mac OS X Snow Leopard (Intel-based)[54]"

so are there any chances of implementing these cards in rockbox, though they require (i guess) exFAT Filesystems?

[[Saint]]

so are there any chances of implementing these cards in rockbox, though they require (i guess) exFAT Filesystems?

If support for exFAT is indeed required, it's clearly a NoDo


[St.]

[torne]

SDXC cards which use the 3.0 specification should hopefully work in Rockbox devices, though this has not been tested that I'm aware of. The later SDXC cards which are higher speeds are not backward compatible and will not work.

The specification suggests cards should be formatted as exFAT, and Windows will refuse to format devices over 32GB as FAT. We won't be able to read exFAT-formatted cards. There is, however, nothing stopping you from formatting a 64GB (or larger) SDXC 3.0 card as FAT32 using another operating system, and then it should work (including on Windows; it will happily read them, just not format them).

[psgarcha92]

hey torne,
that means if the cards are formatted as FAT32, we might be able to use them on RockBox right?

why hasnt anybody tested 64GB SDXCs still?

[torne]

I would guess nobody has one?

[gbl08ma]

Q:

why hasnt anybody tested 64GB SDXCs still?

A:

I would guess nobody has one?

And nobody has one for obvious reasons:
http://www.google.com/products/catalog?q=64gb+sdxc+card&hl=en&um=1&ie=UTF-8&cid=7064730953623214995&ei=rehSTZyjO5G38gOarf2hCw&sa=X&oi=product_catalog_result&ct=result&resnum=1&ved=0CGMQ8wIwAA#
This is the cheapest 64GB SDXC card card available in the market, according to Google.
(there are other, more expensive brands like Kingston)
And still, it's a too high price: $114 as of 9th Feb. 2011.
For this price I can buy a bunch of used (and even some new) Rockbox targets

[saratoga]

This is the cheapest 64GB SDXC card card available in the market, according to Google.
(there are other, more expensive brands like Kingston)
And still, it's a too high price: $114 as of 9th Feb. 2011.
For this price I can buy a bunch of used (and even some new) Rockbox targets

Thats not a microsdxc, so it wouldn't work anyway.

[gbl08ma]

I can't even find 64GB microSDXC for sell on the Internet... if someone finds, can please send me a PM?

[psgarcha92]

i dont understand, these cards were showcased in CES 2009, and they're still not out or what?? any body can contact sandisk or toshiba?

also check the link :
http://www.sdcard.org

it has a lot of specs and everything. 

[bluebrother]

any body can contact sandisk or toshiba?

And why should anybody do that?

[saratoga]

i dont understand, these cards were showcased in CES 2009, and they're still not out or what??

The maximum capacity of a uSD card is determined by the size of the transistors used to make it.  32GB cards just recently became widely available.  Roughly 1-2 years after that, transistor density should have increased enough to make a 64GB card. 

[psgarcha92]

Contact in the sense call up a distributor ask if the 64GB microsdxcs are available or not....take it easy bluebrother...

[AlexP]

Contact in the sense call up a distributor ask if the 64GB microsdxcs are available or not....take it easy bluebrother...

We aren't stopping you if you want to, but I don't think you'll learn much.

[bluebrother]

Contact in the sense call up a distributor ask if the 64GB microsdxcs are available or not....take it easy bluebrother...

Hmm. You spoke about Sandisk or Toshiba earlier but that isn't a distributor. And that still doesn't answer my question why anybody should do that. If you want to contact distributors or manufacturers you're free to go, but why should anybody do that?

[psgarcha92]

Res Bluebrother

I can't even find 64GB microSDXC for sell on the Internet... if someone finds, can please send me a PM?

i should have written that gbl08ma should call up a sandisk/toshiba distributor, but does it matter so much that u needed to post a reply saying "And that still doesn't answer my question why anybody should do that. If you want to contact distributors or manufacturers you're free to go, but why should anybody do that?". i mean, the way, gbl08ma said anybody who finds a 64GB SDXC, PM him, in the same sense and meaning, i said that somebody call up and ask a distributor about the same (i cant because i dont have the numbers, and most of my stuff is brought from ebay). any problems??? shouldnt be any. 
seriously chill bluebrother.