Development - Thumb, small and large

Making the plagiarism topic, I found a 'problem':

Miniature posters on page are 3 types: thumb, small and large (and then hq, ok). When uploading the posters to jayef for telling what of them I liked, I realise than every pic could be turn on another one just changing the letter: for example:

http://www.movieposterdb.com/posters/04_12/2000/0187078/s_2559_0187078_d452b88b.jpg
if I want a thumb I change for t
http://www.movieposterdb.com/posters/04_12/2000/0187078/t_2559_0187078_d452b88b.jpg

But here I found it didn't work with small, just a few, and thumb was too small and large is too much for putting every poster that way. There's no easy way of having all posters on "small"?

I know small are just for main poster on each movie, but I thought it could be useful. But if they take to much space on server or is difficult to do, doesn't mind, just asking 😉

Well, better forget it, I have made the operation to know how much space it could be, and 140000 (just one for group, don't even talk about each poster 160000)

15kb*140000group= 2Gb just of "small" size...

Who would have known that 15 by 15 it would have ended being that much...😁