Something is resizing my covers

I try to save and keep all my covers in a file named folder.jgp with a resolution of 400x400 px. but I dont know why they have been resized to a 316x316 pxs
It may be the windows xp or orandecd itself, the only way to keep that resolution was changing the files atribute to "read only", but some cover in orangecd keeps been displayed in 316x316, besides the picture has not been changing. Can someone help to avoid that? thanks

OrangeCD does NOT resize user provided images or modify them in any way. In fact, these images are read only once when you add MP3 folders into the database. They are never accessed ater that.

This could be some other software resizing your images, possibly even Windows XP.