That is the question?

Nah seriously, everytime im about to burn, Nero asks if i want to burn in multi-session or not. Now, i used an ESBuy DVD-R for one of my back-ups and used multi-session and it worked flawlessly. I then used a silver back Memorex and no mulit-session burn and that movie gave me problems. Like i stated below in another topic, there was about 25 minutes left to my movie and it started pausing every 10 seconds and then finally stopped completely.
Now i don't know what to think of this. Im not sure if it was just the cheap media, or the fact that i didn't burn in multi-session? Any help would be appreciated. Thanx