My Macbook: Apple MacBook "Core 2 Duo" 2.0 13" (White/07).
Main problem: Mac goes black screen and shuts down when I try and load the Apple HW Test by holding down D as the computer turns on. It goes to a black screen with a flashing underscore like it's about to do something but then just shuts down. I am using the DVD as per apple's instructions.
Why I wanna do this: I'm trying to put some new life into my old mac and want to know if it's worth my while and where I should be spending money. The mac makes funny noises when it boots (listen here) and when it's running (listen here). I imagine there could be a problem with the HD, maybe the fans, (definitely the battery, is has 0% capacity), but yes want to know before I start spending money.
Desired solution: How to get Apple HW test to work, or suggestions for a better alternative.