That's why you have 2 gb split:-) not to mention what happens if you are on 2gb mark and the band still have 10 minutes:-)
sorry to say but still more people use cd for moving and keeping data then dvd( i use both).
and for me 2 burn 2 cd in the end of the day is much faster then burn dvd without need to go edit ,split and cettera.
eventually this small unit was made for everyone use , home musisians ,people who recording lecturs ,separate recording for low cost video industry, privet investigators and maybe few tappers :-)
so if this spesific 660 split is not useful for you, you really dont have to use it , i will be happy to get it since it will make my life a little bit easier :-)
best