I'm looking into purchasing a Strong DVD Reader for another machine. I have a 3500 & a 3520a, and there are some discs they don't read very well. With scratched media I get CRC's and Read Errors. However i put those same discs in a Toshiba SD-M1612, and they read PERFECT. I'm very impressed with this drive. It may not be too fast, and it slows down on errors, but it doesn't get read errors, or CRC's. I was amazed it was able to read discs, that I couldn't get past in other DVD drives. Anybody have experiences with the 3540a reading with this precision ?