I can't agree with Kartoffel that the packer is so insecure. Of course nothing is secure, but for all these years i still have not heard that someone broke wrs. I think that at one time when 3DGS was very popular, JCL even offered a reward for this. So from that side there is no reason to worry. There is one theory that if you know full file name you can take away this file from wrs, but i do not think that these are things that should worry us. Most important thing is compression level is great (lets say my 2GB game is resized to 400mb) and you do not need search and select all files you need. Simply packer read names from wmp and script and put them in wrs with one click. All files that are not used will be ignored. Also there no difference betwen loading time in unpacked and packed game.

Edit:
Ok i just hear from HeelX that someone hack wrs. One man is JCL but i do not know who is second

+1