Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't work

Now, I might be wrong... but if a 4GB card gets me 17:29 minutes of HD video, I should expect about 4 times that ammount with a 16GB card. That equates to about somewhere around 70 minutes. Why am I only getting 18:59 minutes out of it? It says there is 14.9 GB there and available when I plug it in to my computer. It isn't the camera, trust me.