Hello folks. I have a 2007 (7th gen) accord and my cousin has a 2008 (8th gen).
I made a back up of his disc using a dual layered DVD as the impage size was around 8GB.
The reason why he wanted a backup is becuase his disc has started getting a little scratched becuase his two kids normally message around in the car.
The backup I made works absolutely fine in both my car and his, tested over distance in his car with no issues.
Just thought I'd mention in case anyone wants to make a backup of their disc. FYI I used dual layer discs and a free program called 'imgburn'