Short and sweet blog posting.
I kept getting this error every time I tried to burn a CD, so far today I coastered 4 CDs trying to resolve this issue:
Errno: 5 (Input/output error), write_g1 scsi sendcmd: no error
First hit in google was a Ubuntu Launchpad bug report from Oct 2007 - https://bugs.launchpad.net/ubuntu/+source/k3b/+bug/149076 - SERIOUSLY?! Still not fixed in 10.10, 3+ years later?!
Add the following PPA: https://launchpad.net/~brandonsnider/+archive/cdrtools by running the following command:
sudo add-apt-repository ppa:brandonsnider/cdrtools
Then, sudo apt-get install cdrecord - This will remove the crappy wodim that comes stock, and replaces it with the good ol' cdrecord we used to love. Damn you Ubuntu!
Not only did that fix the issue - the burn speed was way faster too.