I have a project brought to me by a friend. He has 20 cassettes that he wants to be transferred onto a CD. I have a Pioneer CTF-950 so running the cassettes is not a problem. What is a problem is that my Thinkpads have no line level inputs, just a non stereo mic input. I am going to purchase a USB device off of eBay. I have never used on of these, but I going to give it a try. https://www.ebay.com/itm/USB-External-Channel-5-1-S-PDIF-Optical-Sound-Card-Box-DAC-Audio-For-PC-Laptop/142518890419?ssPageName=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649 Has anyone ever used one of these devices before? I would like to hear opinions about this device if anyone has tried one. Thanks.