Do you want to create a struct array with field named datad where each entry is 416 x 640, and the struct array would be 1 x 336 ?
Do you want to create a scalar struct with 336 different numbered fields each of which contains a 416 x 640 array?
Your output seems to suggest that possibly Dark.raw only contains a single 416 x 640 array. If that is not correct, if you think that Dark.raw contains 416 x 640 x 336 all in one file, then you need to investigate why it is saying 416 x 640 only. Your dataw shows that your general method is able to return a 416 x 640 x 336, so it would have to be something about the individual file for which infod.Bands is saying 1 instead of 336.
