My guess is that its your drive. I have that exact CDROM, the Creative 24Xmx, and i can tell you, i hate this damn thing. Sometimes it works, sometimes it doesnt. Its insanely loud, and sometimes has troubles reading cds at all. Im definitely guessing its the CDROM especially since the CD worked fine at your sisters. I really dont know what to tell you though, if i knew how to fix it, it wouldnt be making this noise right now. (sometimes a swift smack to the side of the thing helps, but i dont recommend that) I guess the only real way out is a new CDROM.
"In the computer industry, there are three kinds of lies;
lies, damn lies, and benchmarks."