EP, SP Mode for DVD R's?

I was looking on the cover of my Imation 25 Pack and it shows…

4 Hours for EP Mode
and 2 Hours for SP Mode

I think this is for making your own dvd. However with the software I’m using, I don’t see any way to change the modes and stuff or record in a certain mode. The softs I have used are…

Nero Burning Rom v6.0
Easy CD/DVD Creator v6.0
Sonic MyDVD v4.5

Please Help!:bow: :bow:

Basically you can fit more on the DVD by lowering the bitrate.