My LT150 does not zoom so I use Zoomplayer with Cinemaster engine. This give excellent image on my Geforce2 GTS Pro and 100" wide at 14 feet on homemade 16:9 blackout screen. The Zoomplayer let me zoom or unzoom without any performance penalties on my Athlon 1.33/384MB/Hitachi 12x DVD HTPC. If I was watching 4:3 DVD or sources, I just dial my cordless Logitech mouse and bingo I've got ZOOM. Any underscan or overscan image can be zoom to fit exactly to my screen. My resolution is 1024X768X32bitX60Hz. I highly recommend this Zoomplayer. It's just a great front end and uses most DVD player filters. It also plays other stuff like MP3, AVI, MPEG but I haven't tried yet. Best of all it's free 
