I was shopping at Best Buy and was going to purchase a Sony 8GB SDHC card on sale for my Canon Camera. The salesman told me that card would only work in Sony cameras and products and Sony SD cards are not compatible with any other camera. I specifically pointed out this was *not* Memory Stick and he still confirmed that Sony SD cards will not work with other non-Sony products and can even cause damage to the memory. Is this true? What is the difference between Sony SDHC cards and other SDHC cards? Is anyone using Sony SD cards with non-Sony products? Thanks!