You might try to compress with something else first then do a simple data burn with just about anything, even Finder.
After compression, whether you burn full disk or feature only, the burn process is still just a straight forward data burn and can be done in Finder if it is unprotected content.
When I get to the burning step I just use the Finder. I have Toast but burning a video_ts folder is really just a straight forward data burn that doesn't require special burning software. For this step, the only thing Toast can do for me more than Finder is skip the verification step, which I like to verify everything anyway. (I know, but it's an anal thing I guess) I have not had any issues burning single layer or dual layer disks in Finder. I used to burn a lot of DL disks but since I don't have a 200" widescreen TV I now compress everything to fit on single layer disks to save money and they look fine on thirty something inch TV's.