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Old 25 June 2008, 17:01   #1
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Country: UK - England
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Navionics MMC vs SD

Hi ribsters,
I am waiting delivery of my new plotter, a lowrance LMS 527cdf. I am now looking to buying the navionics card for the North Wales area. The unit will accept MMC or SD cards but which version should I go for and why? are there any pros and cons? are both types available in the UK?


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Old 26 June 2008, 11:21   #2
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I thought Navionics charts only came on SD, could be wrong though.

SD is just the modern incarnation of MMC. SD allows the data on the card to be secure by locking it into the card ID ( i think).

This lot will explain it

wikipedia MMC/ SD


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Old 30 June 2008, 13:48   #3
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I have tried to get my unit to read Navionics charts from a SD card and i doesnt like it (unit is LMS330c) sees the all the other files but will not read the charts. Pass on why but ill stick to mmc at least they work.
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