DVD player plays DVD media, Toast makes a coaster

I have a Video_TS folder whose content plays under Apple DVD however when i use Toast to burn it to DVD, I get an unplayable DVD. The computer that just burned it wont even read it! I drag the Video_TS and an empty Audio_TS folder to Toast under the Data setting and i select DVD-ROM (UDF) from the menu on the left. Once it's burned, I'm left with a coaster. I've burned DVDs successfully before using this method. Can someone help me?

 

what media are you using and at what speed are you burning?

 

TDK DVD + R 4x. i have a lacie d2 burner that burns all dvd formats so i don't understand why it wont burn properly.

 

what formats does your dvd player take?
and are those 4x or 8x dvds? if its a 4x you wanna burn at 2x, and if its an 8x you wanna burn at 4x.

 

it takes + R, - R, RW and anything else. it's a lacie d2. i've been burning other dvds at 4x and they come out fine.