I am currently at college and my room mate is an inconsiderate ***** who blasts metal music at full volume?

while I am trying to memorize stuff like Biology. Well, it's either that or she talks in her phone. For hours. She is unbelievable and I find it impossible to talk to her about anything without turning it to an ugly cat fight.She does many stuff like leaves her underwear everywhere etc that I basically just wanna live in peace after many failed attempts to confront her. To combat the noise problem, I bought a pack of ear plugs from Amazon http://www.amazon.com/Hearos-Ultimate-Softness-20-Pair-Foam/dp/B001EPQ3H4/ref=sr_1_1?ie=UTF8&s=hpc&qid=1301932696&sr=8-1 and it did manage to block out her indecent chatter but still won't block out the music. I just want to know if any of you know of any other more effective ear plugs (maybe with higher decibel reduction?) or some other methods that could effectively block out music completely. I once went to a hardware store and tried on these http://www.amazon.com/Peltor-H10A-Optime-Over-Earmuff/dp/B00009LI4K/ref=sr_1_cc_1?ie=UTF8&qid=1301932866&sr=1-1-catcorr but its actually quite uncomfortable and it will give me a headaches if I wear it for long.. Does any one have , some other methods/ recommendations that they could share with me? I really want to study as it is so important for me..