09-04-2003, 08:41 PM
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Theorist
Join Date: Jul 2003
Posts: 267
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Re: MultiMediaCards Make a Comeback
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Originally Posted by Jason Dunn
Has anyone ever heard of ATP?
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Adenosine Triphosphate! :rock on dude!: I have some ATP, and I suspect you do too! (You'd be dead if you didn't! :lol: ) |
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09-04-2003, 08:42 PM
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Pupil
Join Date: Jan 2003
Posts: 18
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In a nutshell... Secure Digital cards allow a software publisher to control who uses the data stored on them, and when. Theoretically, a Secure Digital slot implemented with all the features can prevent a user from writing over data, copying data to other storage, or accessing the data without proper credentials or beyond a certain date range.
Most Pocket PC's don't have those features implemented in hardware, and are just Secure Digital compatible. Also, most SD cards sold to consumers won't prevent people from writing to them, copying off of them, or erasing them. But the fact that the capability is there is what bothers me... It's like having a security camera and an electronic lock on the door to my house, but not having access to the tapes or the key code. What do I do one day when I can't get into my own house, and some salesman is waiting outside because he knows when I come in and out?
I'll admit that software developers and other traditional media providers need to protect their property somehow. But limiting the way I use a piece of hardware that I paid for is not the way to do it. If somebody wants to lock down my hardware, they can buy it for me. Otherwise, I'll use it the way I please.
-KKC
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09-04-2003, 08:58 PM
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Ponderer
Join Date: Feb 2004
Posts: 107
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hmm
i like mmc now
:multi:  nfire: :multi: nfire: :multi: nfire: |
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09-04-2003, 08:59 PM
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Ponderer
Join Date: Dec 2004
Posts: 113
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Quote:
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Originally Posted by kendrick
I'll admit that software developers and other traditional media providers need to protect their property somehow. But limiting the way I use a piece of hardware that I paid for is not the way to do it. If somebody wants to lock down my hardware, they can buy it for me. Otherwise, I'll use it the way I please.
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I think you can take off the tin foil helmet. The protective measures are used by software developers who distribute their product on SD cards, like those games and dictionaries Palm put out. Shouldn't they be allowed to control their product? What possible reason could a memory manufacturer have to limit access to the flash media they're selling? I can't think of any scenario where SD's DRM could be used against the consumer. |
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09-04-2003, 09:02 PM
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Mystic
Join Date: Dec 2003
Posts: 1,678
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Re: MultiMediaCards Make a Comeback
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Originally Posted by easylife
Quote:
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Originally Posted by Jason Dunn
Has anyone ever heard of ATP?
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Adenosine Triphosphate! :rock on dude!: I have some ATP, and I suspect you do too! (You'd be dead if you didn't! :lol: ) |
I remember years ago going to a biology lecture entitled "ATP is not an Indian tent".
__________________
Cheers!
David
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09-04-2003, 09:45 PM
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Intellectual
Join Date: Jul 2003
Posts: 129
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I couldn't help but notice that their speed comparison was rather devoid of the top performers in the SD card arena (ie. the Lexar and Panasonic 256Meg cards.) They had the Sandisk 256Meg card, but the boards seem pretty unanimous about their bad performance.
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09-04-2003, 09:48 PM
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Thinker
Join Date: Aug 2006
Posts: 386
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Quote:
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Originally Posted by Jeff
What possible reason could a memory manufacturer have to limit access to the flash media they're selling? I can't think of any scenario where SD's DRM could be used against the consumer.
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I agree with all you said...BUT...someone will figure out a way and a reason to do this given all the panic on IP issues. |
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09-04-2003, 10:44 PM
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Neophyte
Join Date: Jul 2006
Posts: 4
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Bus bandwidth differences?
I'm working from oft-faulty memory here, but isn't MMC a single-bit (ie serial) data bus, whereas SD supports an up-to four-bit interface? If so, this puts quite a lot of doubt in my mind as to the company's performance claims....unless the flash memory behind the bus is so slow that the bus itself isn't the bottleneck. However, with the page mode capabilities of today's NAND chips.....the memory should NOT be the bottleneck.
The other question, of course, is whether or not Pocket PC manufacturers have implemented anything wider than a 1-bit bus to whatever's in the SD-or-MMC slot. If it's serial only, that levels the playing field too.
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09-05-2003, 01:04 AM
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Moderator
Join Date: Feb 2002
Posts: 2,409
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Quote:
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Originally Posted by kendrick
Now that SD no longer has an advantage in capacity, there is absolutely no reason for consumers to continue to support that medium.
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Except that SD can support I/O devices and MMC cannot? |
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09-05-2003, 01:21 AM
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Pupil
Join Date: Dec 2006
Posts: 34
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New Nokia phones use MMC cards
Its nice to see MMC capacity go up. Some new Nokia phones (like the 3300 Music Phone) support MMC cards but not SD cards. If SD cards are more "secure", why did a phone company choose MMC over SD? Doesn't MMC have some "content controlling" features too (say to prevent me from sharing ringtones, games, etc. with others)?
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Linear Mode
