Toast 8 Titanium 8 Help!

[boeingnick]

I have been using toast 8 for a little while now and never had a problem until now. I have been using memorex DVD+R DL disks. I am doing the Video_TS Folder burn to a DVD.
I am getting the error message bellow.

Sense Key = ILLEGAL REQUEST
Sense Code = 0x26
INVALID FIELD IN PARAMETER LIST

What do I need to do to fix this?

Please Help!

I am using a MATSHITA DVD-R UJ-857E burner on a macbook 2.16 ghz.

 

[miltiadis]

Make sure you enabled buffer underrrun prevention (open toast, go to recorder settings, advanced and check the corresponding radio-button), lower recording speed and try not to do other things while burning...

 

[boeingnick]

I have tried everything you said above...
I appreciate your help though