A few months ago I ordered a GPS for my daughter's car. When I placed the order, the salesman informed that she would need a high powered memory card for the system to operate well. This memory card was quite costly.
My daughter tells me that it is not necessary and runs it on a regular card. She also went to Best Buy and was told that a regular memory card for digicams is sufficient.
The store I purchased the GPS from will not take back the memory card. They feel that it will make the GPS work better. Somehow I feel that I have been had.
Can I use this card in my digital camera, a canon 6 mp?
What does it do that a 'regular' memory card doesn't?

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