Wedding photos are usually taken with a camera, not a high-definition camera. This memory is relatively large, a photo is about 30 to 40 megabytes, and 40 to 50 megabytes is possible. So you said that 250 photos need at least 1 megabyte of memory, and then converted into G, it needs more than 9 G. Therefore, it is recommended that you use 16G memory to store photos.