Panasonic Working On 2-Terabyte SD Cards

An anonymous reader writes "SD cards with a theoretical maximum capacity of 2TB are in development by Panasonic and the SD Association, it has been announced. The technology is called 'Secure Digital Extended Capacity', or 'SDXC', and Panasonic has announced it will soon show off a 64GB SDXC card. Using the new technology, read/write speeds are set to hit 300MBps. SanDisk and Sony are using the same standard to develop Extended Capacity cards in Sony's Memory Stick Pro and Memory Stick Micro range. SDXC utilises Microsoft's new exFAT file system — AKA 'FAT 64' — which first appeared in Windows Vista SP1, and has a theoretical file size limit of 16 exbibytes." Reader xlotlu adds a note about the "proprietary exFAT file system, which is available for licensing under NDA. There are currently no specific patents on exFAT, but its legal status is uncertain since it's based on FAT. The FAT patents have been previously upheld in court."

Comments

They're talking about address space

[seanadams.com]

This article is absolute blithering bullshit. They're talking about the interface / file systems' _addressable_ size. Compared to actually achieving higher storage densities, that's about as hard as pulling a number out of the air. It has absolutely nothing to do with the technology needed to fit 2TB or any other number of bytes into whatever little card.

And oooh theyre making a 64GB card but "working on" a 2TB card? Yeah right, so only a 30-fold increase in density left to go!

Then he goes on to discuss throughput as if that has anything to do with it....

Re:They're talking about address space

[sexconker]

No! They're working on a 2 TiB card and have a 64 GiB card just about ready. They have a theoretical limit of 16 EiB!

Get with the times, accept the ibi!

(Fuck ibi. 1 KB = 1024 bytes.)
(Fuck this article. Might as well say Sony is working on a new battery that will recharge in less than 1 minute and last for days, while Intel is working on 32 nm CPUS, and later, 20 nm!)

Re:They're talking about address space

[vlad30]

Normally I'd agree. But after SDXC, they've run out of good options for acronyms.

SDUC (Ultra) SDxC (xTreme!) SDSC (Super)

SDPL (Plaid) They'll go Plaid

Re:They're talking about address space

[Anonymous Coward]

I still cant understand why Microsoft is the only company who hasnt been able to make fragmentation resistant file systems
Hell OS/2 had HPFS which didnt fragment and that was ages ago and made partly by Microsoft.

Bullshit. Many filesystems can and do experience fragmentation; fragmentation in NTFS is only such a big deal because of the existence of defragmentation tools. One of the new features of ext4 is an online defragmenter; there was an ext2 offline defragmenter, but nothing for ext3. XFS has an online defragmenter as well. OS X's HFS+ also does limited automatic defragmentation.

Re:FAT

[Amouth]

because they ship them formatted because 90% of buyers are stupid.

it is cheaper for them to pay a fee to licence a file system - preformat the card than it is to ship them blank only to have the consumer call in saying it is broke + the costs associated with said consumer returning perfectly good products thinking they are broken.

users are idiots - if they ship them non formatted then people will think they are broken

- yes it's sad - yes its true

Re:I, for one...

[banffbug]

Please forget what i just said. I am wrong so so wrong.

FAT 64

[fru1tcake]

a theoretical file size limit of 16 exbibytes

That's almost enough to store a picture of yo mama!