Unlikely this would bar entry. More likely they will either arrest you at the border or, far more likely, not connect you to the prior situation and allow you to pass without incident. Frankly, I hope they arrest you. Willful criminal copyright infringement is a significant problem and is a felony here in the US if the value exceed $1000 during any 180-day period http://www.law.cornell.edu/uscode/text/17/506#a_1_A.
I am not your lawyer and you are not my client. Free advice here is without recourse and any reliance thereupon is at your sole risk. This is done without compensation as a free public service. I am licensed in IL, MO, TX and I am a Reg. Pat. Atty. so advice in any other jurisdiction is strictly general advice and should be confirmed with an attorney licensed in that jurisdiction.
Your facts do not give any indication that you will be stopped at the border. Somehow I suspect there are additional facts, especially given the care you have taken to protect your identity.
The above is general legal and business analysis. It is not "legal advice" but analysis, and different lawyers may analyse this matter differently, especially if there are additional facts not reflected in the question. I am not your attorney until retained by a written retainer agreement signed by both of us. I am only licensed in California. See also avvo.com terms and conditions item 9, incorporated as if it was reprinted here.
Really? You admit to criminal conduct to a group of lawyers and then ask our help to assess your risk of getting caught? Wow. That's plain stupid. NO attorney -- or anyone else -- is allowed to help you.
In fact, the concealment of a felony, by anyone, is a crime called misprision: "Whoever, having knowledge of the actual commission of a felony cognizable by a court of the United States, conceals and does not as soon as possible make known the same to some judge or other person in civil or military authority under the United States, shall be fined under this title or imprisoned not more than three years, or both." 18 U.S.C. section 4.
The above is general information ONLY and is not legal advice, does not form an attorney-client relationship, and should NOT be relied upon to take or refrain from taking any action. I am not your attorney. You should seek the advice of competent counsel before taking any action related to your inquiry.