oh this is an easy one, even I can handle it.. at least the first question..
DVD-Ram is a DVD disc, looks exactly like a DVD-R disc, except the recording surface looks much different. You need to purchase those discs separately, just like the DVD-R discs.
The DVD-Ram disc is like a portable hard drive. Just be careful with it and keep it protected/clean.
As far as the G5 question, I will defer to others. I don't think the Panny has a connection that allows you to go directly into your G5. You must use your DVD-R disc. If you want to use DVD-Ram discs, then you must buy another external ram drive for your Mac as the superdrive doesn't read/write the ram discs.
DVD-Ram is a DVD disc, looks exactly like a DVD-R disc, except the recording surface looks much different. You need to purchase those discs separately, just like the DVD-R discs.
The DVD-Ram disc is like a portable hard drive. Just be careful with it and keep it protected/clean.
As far as the G5 question, I will defer to others. I don't think the Panny has a connection that allows you to go directly into your G5. You must use your DVD-R disc. If you want to use DVD-Ram discs, then you must buy another external ram drive for your Mac as the superdrive doesn't read/write the ram discs.