Don't know where you've gotten the idea that Sims 2 uses safedisc 2. Perhaps you're using the hopelessly outdated clony xxl. Sims 2 uses safedisc 3.2.
Anyway, with your equipment, you should try reading and writing using alcohol with your Sony (which is just a re-badged Lite-on). Try first with the plain old safedisc datatype settings and if that doesn't work try with safedisc 2/3 datatype settings.
Read and write at low speed, say 4x or 8x and remeber that if you want to run the back-up copy from a writer (rather than an ordinary cd/dvd rom) you will have to enable Ignore media type in alcohol's emulation settings.
Try first with a cdrw so as to avoid coasters.