I realise I'm a dwarf among giants in the computer savvy world of TeakDoor
but I'll have a go and let you know what I can about burning DVDs.
My burner is a Gigabyte 8x costing 6,000 baht and I use Nero v7 (I think) from Panthip 150 Baht.
If you're going to burn a DVD you can use the copy function on nero but the
disc will probably need decrypting.
Google for DVD decrypter [free download.]
If you're going to copy a DVD9 you'll need to cut off some excess so you'll want a program called DVD shrink [free download.]
I use Ulead Movie Maker when I want to copy VCDs. I can get four VCDs on one DVD and the Ulead program does everything for you including a neat intro screen.
Many will say "I can get a DVD from Panthip for 100-150 baht, why would I want copies?"
Fair question. You won't find any copies of available DVDs in my collection but if you like Asian movies that don't make it onto general or pirate release you can Tsutaya them and copy to your hearts desire.
I have a weakness for Jap/Korean horror and I've copied about 30 movies over the past 5 weeks.
If you dabble I would love to get your experiences because I can't believe I'm doing it the best way.