I've been trying to burn avi files to dvd-r disc from my laptop, so that I can play them for my son on his portable dvd player.

However, I keep getting unsuccessful burning and basically a lot of coasters. I've tried Windows Media Player, Windows DVD Maker even something called the AVS Video Converter that someone recommened, but no luck.

My laptop is a Toshiba Satellite A135- T2250, Vista Home Premium 32-bit OS
and the DVD RW Drive TSSTcorp CD/DVDW TS-L632 ATA Device which seems to be 'working properly' according to the device properties in device manager. I'm not sure if its the driver problem as it seems like they are updated.

Any suggestions? Thanks in advance!