decompression error on downloaded image file

Why it is impossible to install all versions of openvision on my Gigablue Quad Plus HD. As soon as I press OK to start the installation, it disconnects. For openatv last version, I have in return a compression error message. I tried on my computer to unzip the openatv image, and I have a decompression error. Someone could help me to find solutions to these problems. Thank you.

Hello, i use 7zip -------< error dezipping. I still have the openatv image extraction error. But the openvision image does not install on Gigablue quad Plus HD. Is there a solution to this problem. Thank you.