My wife decided that we need a camcorder. As I am a good husband, I do not complain (she pays 😀 ).
There was an offer in a super market nearby. Not as low as you can find in the internet, but if there is a problem, it is much more easy to complain. For something like this, I/we prefer this and am-are OK to spend a little bit more money for this convenience.
This camcorder is recording to SDHC cards. Such cards have a speed rating, and you need to take some min-speed one, to be able to record videos with a camcorder. Unfortunately Samsung does not list the speed rating somewhere. I searched on the Samsung site in the specifications and in the FAQ. Nothing. After a little bit of googling I at least found a review where the recording time for specific card-sizes where listed.
So I took the card-size in MB, divided it by the recording time in seconds, and got the data transfer rate per second for the specified resolutions. The 1080i resolution has the highest transfer rate and as such it is the most interesting one to decide what kind of card one needs.
The highest transfer rate seems to be less than 2.2 MB/s, so a class 4 SDHC card should be enough.