I dont find it wrong.
Your sharing. The copyright law was reinforced by the lobbying of artists who live by the almighty dollor. (greed=sin).
(Not to metion that the artists that testified on capital hill were artists that were pretty much washed up. Lacking in record sales, of course they were upset about losing money from sharing)
But there are so many questions that could be asked about our world and it's sins. "A man that would loan money to his neighbor, and charge interest on the repayment, is commiting a sin".
That would pretty much put the banks and credit card companies out of business. Yet there still here.
Basically my point is; we live in a very sinful world. There is no authority over God Almighty. If you pray to God, asking him to forgive you of your wrong doings, you'll know in your heart if music sharing is wrong.
Peace and Godspeed to you all.