can Dvd burner read dvd's, for example can I insert a dvd into the DVD burner and watch movies off of it or do i need a separate dvd-rom drive??

You can do it but I certainly DO NOT recommend doing that. I used my first DVD Burner as an all-in-one drive (watched quite a few movies on it) and it ended up dying after only 8 months of use. Get a seperate DVD-ROM drive. You can get a nice Pioneer 120 (don't get the slot loader model) for under $40 shipped from www.newegg.com and If you are in the UK I am sure you can find it for about 30-35 pounds. Just remember that it is always MUCH cheaper to replace a DVD-ROM drive than a DVD Burner. ;)

Many video to DVD burner supports convert burn video to DVD disk.
Here is the a video to DVD burner :Total Video2Dvd.
It is well know and can converts any High-Definition video formats such as HD-DV, MKV, Blu-ray TS, TP, M2TS, AVCHD, WMV-HD, HD avi to DVD and all other popular video formats Youtube FLV, Xvid avi, Mov, Rmvb, Rm, Divx, Wmv, Asf, VOB, DV, 3gp, Ogm, Mpeg, Mpeg4, AVI to DVD formats.
***********.effectmatrix.com/total_video_to_DVD_Author/index.htm
:madhack: