Recently, my friend's computer has encountered a painful error that reads "A disk read error has occurred. Press control + alt + delete to continue." After doing a great amount of research online, we've come to the realization that this is a very difficult problem, and we'd like to try and get the information off of it before undergoing any potential solutions that may or may not erase the data. To that end, I went and bought a 4 Gigabyte USB stick. We were wondering what version of Ubuntu (or Linux) would be best to use as a Live CD and attempt to recover this information? The computer in question is a Sony VAIO VGN-NS190J laptop, if the type matters.