aniramca@[EMAIL PROTECTED]
wrote:
> To****ba announced it in August 2007 last year and they indicated that
> it will be ready for January 2008. Panasonic has just introduced it
> recently for market use in the latest CES convention. It heard that it
> costs about $700 in Japan.
> Some questions to ponder:
>
> 1. I wonder about a physical limit in storage for the current size of
> an SD card. How far do you thing that they can squeeze in the amount
> of memory in that size of card? Could it become a 50, 100, 200 GB SD
> card in the future. Why do they multiply in the order of
> 1,2,4,8,16,32, etc. Why not in nice number like 5, 10, 20, 30, 40, 50
> GB, etc (metric)?
>
> 2. On the back of my regular SD card, there are approx. 9 contact
> areas which connect into the terminal. Are all those 9 contacts
> currently utilized for a typical usage in a digital camera? Or perhaps
> that they only use 2-3 contacts and the others are just reserves for
> future use? I noticed similar thing for a telephone jack. There are
> those phone cables with only 2 connection wires inside (cheaper), and
> there are with more wires (which is perhaps capable for faster
> connection or other accessories in a phone - just guessing). Is there
> a technical discussion in the internet about these contacts and/or the
> details inside an SD card?
>
Comparing apples to dogs. Telephone lines use the inside 2 contacts for
line 1, the next outer pair for line 2 and the outside 2 contacts for
line 3.
Memory cards work on a totally different concept.
> 3. They said about 32GB SD card. What about the Compact Flash card?
> What is the largest size available currently for CF? Is CF, xD and
> Sony stick will eventually be abandoned in favour of SD cards? (just
> like the wars of betamax vs VHS, and recently between blue ray and HD
> DVD). I believe that SD card was pioneered by To****ba.
>
> 4. For an average usage in a digital camera, how useful is a 32 GB
> card? Would you prefer to carry 4x8 GB SD card or one 32GB card? Is
> an 8GB card more than enough for a digital camera? Is the increase of
> GB in storage will be matched with higher and higher MP cameras? Will
> the future commercial digital cameras in the market ever reach, say 32
> or 64 MP cameras? I assume current RAW files are now about the size of
> 25MB each. Do professional cameras produce larger size RAW files? I
> know that there are 30 MP or perhaps even more MP in current
> professional cameras ( 6x4.5 of 6x7 size cameras).
>
> 5. Is the new 32 GB SD card compatible for all current digital
> cameras, regardless of features and prices? It was mentioned
> something about High density SDHC usage, and I wonder if my cheap $100
> camera, or my 4 years old camera (3MP) can handle it. Or is this for
> high end cost, latest model, and high MP cameras' usage only?
>
> Thanks for the input and discussion
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