you need to learn assembler, you need to learn to read assembler code like your native language. and learning would take more then a couple of weeks. it will take a lot of time (and money) modifying that drive and if you don't know know assembler and electronics it would be better to start learning and in a year you can probably return on the project. But who uses CD's this days, and every 1x DVD speed is equal to 9x CD speed, so 16x DVD drive when reading DVD's reaches 144x CD speed . So there you go, you have 144x speed.