No because a standard DVD holds less than 5 gb. Blu Ray can store 25 GB on a single layer disk , up to 200GB on a 8 layer version, but I doubt that there is a single lab that offers that service. Good question thogh, I will have to look into portable storage systems that can read the various formats.
A more expensive but more practical solution would be to have a spare card. 32 GB is coming out, as usual that means that all of the other cards will go down in price.
Sony,Canon and Panasonic have a dedicated DVD burner to capture an AVCHD file and burn it onto DVD. I don't know if the Sanyo HD 1000 version of AVCHD is recognised by any of them. I have tested the Pana version, very easy to use but you need the Pana SD1 or 5 as a player, both for recording and playback ( once you have your 4GB , about 1 hour, burned onto a DVD, you still have to connect the burner to the camera and the camera to your TV to play it back).
Keep in mind that you would have about 4 hours of video on a 16gb card at the highest resolution, on a long trip that would still be a lot of footage.