Talvez possa ajudar....
My previous recorder was a Lite On 832S. The general idea i have with him, was that it prefers +R DVD than -R DVD.
I did use a lot the Firm VS08. It did work very well for me. The Verbatim +R 4x and Memorex + R 4x, were easly burned at 8x....with Omnipatcher!
Also this unity, don`t like very much of BAD Media..
I recomend Verbatim, Memorex, and + R to -R.
Feel free to PM to me. You can find me at Plextor tread.
Best Burns! Cumprimentos!