The tomtom new edition only supports 2GB.
http://us.support.tomtom.com/cgi-bin/tomtom_us.cfg/php/enduser/std_adp.php?p_faqid=7957
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I've covered this topic many times in the past so I'll be short. One models, with the SD slot, can easily read data on SD/SDHC cards but writing is usually a different matter. When dealing with any non-small files, you should use a proper SD/SDHC adapter. If you don't, you are more than likely going to find corrupted files and/or FAT tables. When all files are transfered from internal memory to the SDHC card, Home will treat your SDHC card as if it were internal memory and will be able to install your QuickFix, MapShare updates as well as install POIs, languages and whatever without problem provided you use a proper SDHC adaptor. If you still want to use the SDHC card in the TT slot when your unit is linked with the USB cable, expect problems to occur...
hmmmm, I did not know that a non SDHC device could easily read SDHC cards, and writing is the only issue - but normal operation of the device includes writing to the card, so where does that leave us? Surely saving map points, favorites, POIs, switching maps, changing preferences, etc all write updates to the file system, which on the One 2nd Edition is entirely on the card when the card is used - and thus potentially and likely causes a data corruption issue on the SDHC card?
I'm really not trying to be a dickhead here, as I'd love to be wrong and buy a nice, fat 4GB or 8GB SDHC for my old TT1 2nd Edition.....so am I wrong in this assumption?
thanks.
I will stick to the SD cards for any extended trips out in the middle of nowhere. May try an SDHC card around town.
I always keep my internal memory as updated as can be so if my SDHC card goes wrong, I can always rely on internal memory. So far no need to use it even if I gave it a lots of work. When I came back from to Quebec city last September, I decided to use the old scenic road beside the St-Laurence river for a good part so I could visit one of my ancestors' small town of Deschaillons and, because of road repairs, left the main road for small country roads and it got a good load of recalculating the route. After leaving Deschaillons, I did not follow the TT route and just went in the direction I felt would lead me onto the TC highway just exploring those out of the way places. It did get a good workout and didn't fail.
Can we keep this thread on topic of sd cards, please. Feel free to start another one in third party software for Event Logger. Thanks for your understanding.
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