how do i re-write over a dvd=rw sony disc?
Erase it and start over again if you don't want the material that is on it now.
Imgburn (free burning program) www.imgburn.com
Within ImgBurn, go to Tools-->Drive-->Erase Disc-->Quick Erase.
Once done, you can write to it with any burning program.
If you are using a standalone most of these will also erase a DVD RW . Some call it Formatting. This is not as complete as an ImgBurn Full Erase .
If you get errors after burning the disc, then do a FULL erase before to write data on the disc
oops too slow in typing :doh: