And tar/pad them, encryption if not done carefully when combined with compression suffers from the same kinds of problems as ECB. AKA, it wouldn't surprise me

And tar/pad them, encryption if not done carefully when combined with compression suffers from the same kinds of problems as ECB. AKA, it wouldn't surprise me at all, if given a disk with 100 folders, each with 8-15 encrypted files each, that someone couldn't figure out which albums comprise a good number of those directories simply from the resulting file lengths.