First let me say I have purchased 3 separate Libraries from Nitrozme and have been using them since August. The effects are great when they work. However, when there is an issue and there will always be issues with these types of products the help/response is severely lacking. After writing the seller and explaining the issue they responded saying they sent a screenshot which did not come through. I responded and the seller disappeared. My issue is still not resolved. This is the second issue I have contacted the seller about which they just stop responded and your issue is left unresolved. Product wise, its a great pack even with the bugs. Customer service wise they can and should be much better.