odd, have you tried a different unzipper?
whenever something like this happened to me it was because of something like japanese file names not being read correctly but i dont have any of those
I'm getting this error as well, I'm just trying to unzip like a normal zip file, I'm not using any special program.
sometimes the default ones didnt work for me either, i had to ule 7zip when ultimatezip didnt work
I tried 7zip and it does work so yeah.
