Hi.

I'm not sure how many of you guys have a DVD recorder at your house, and/or DVD burning support on your computer (at my house, we have both), but there's a couple of questions I need to ask regarding DVD R/DVD-RW discs.

1. When you check the amount of space on a single one of either kind of disc (I've seen DVD-R/DVD-RW discs with 4.7 GB on each disc), is there a way to determine how many hours of recording time there is on the disc according to the amount of space on it?

2. When recording something to a DVD-R/DVD-RW disc, how do you record a second program onto the disc w/o overwriting the first thing recorded if you're using a computer?

Thanks in advance.