Originally posted by Schraubstock Hi
I totally miss your logic. "More cards to go wrong" - What has the quantity to do with "more" to go wrong. Are you saying smaller GB cards fail more often? If you have one big card and it fails you it is a 100% loss, if one card fails you out of 10 it is a 10% loss.
My logic is if you have 10 cards then you have 10 times the chance of having a faulty card than if you have 1 card. You also get only 10% of you images lost. So 10 times the likelihood * 10% of the images lost is in fact the same overall risk of losing images than one card without the risk and hassle of switching them out all the time. Having 1 big card from a manufacturer like Lexar or Sandisk, then testing that card out before any trip, is IMHO a much safer option. SD cards are tiny and easy to misplace in my experience.
Anyway, cards should be backed up daily while on a trip so the images to be lost is only those shot that day, nothing to do with the size of the card.
If you think small cards are safer then why not buy only 256MB SD cards and carry 150 of them?